feat(content): add link to "/tags/" to the global menu

37 files changed, 224 insertions, 111 deletions

diff --git a/nuldoc-src/components/global_header.ts b/nuldoc-src/components/global_header.ts
index 4f7df3b..d2e6687 100644
--- a/nuldoc-src/components/global_header.ts
+++ b/nuldoc-src/components/global_header.ts
@@ -19,17 +19,22 @@ export function globalHeader(config: Config): Element {
         el(
           "li",
           [],
-          el("a", [["href", "/about"]], text("About")),
+          el("a", [["href", "/about/"]], text("About")),
         ),
         el(
           "li",
           [],
-          el("a", [["href", "/posts"]], text("Posts")),
+          el("a", [["href", "/posts/"]], text("Posts")),
         ),
         el(
           "li",
           [],
-          el("a", [["href", "/slides"]], text("Slides")),
+          el("a", [["href", "/slides/"]], text("Slides")),
+        ),
+        el(
+          "li",
+          [],
+          el("a", [["href", "/tags/"]], text("Tags")),
         ),
       ),
     ),
diff --git a/public/404.html b/public/404.html
index cf6553a..61c347a 100644
--- a/public/404.html
+++ b/public/404.html
@@ -18,13 +18,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/about/index.html b/public/about/index.html
index a2cf3c9..5d59946 100644
--- a/public/about/index.html
+++ b/public/about/index.html
@@ -18,13 +18,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-03-05/my-first-post/index.html b/public/posts/2021-03-05/my-first-post/index.html
index ac1044d..8821368 100644
--- a/public/posts/2021-03-05/my-first-post/index.html
+++ b/public/posts/2021-03-05/my-first-post/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-03-30/phperkaigi-2021/index.html b/public/posts/2021-03-30/phperkaigi-2021/index.html
index 49338c5..9f3cd92 100644
--- a/public/posts/2021-03-30/phperkaigi-2021/index.html
+++ b/public/posts/2021-03-30/phperkaigi-2021/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html b/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
index b1da2a5..91b9ec1 100644
--- a/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
+++ b/public/posts/2021-10-02/cpp-you-can-use-keywords-in-attributes/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/python-unbound-local-error/index.html b/public/posts/2021-10-02/python-unbound-local-error/index.html
index 7c951cc..8380acb 100644
--- a/public/posts/2021-10-02/python-unbound-local-error/index.html
+++ b/public/posts/2021-10-02/python-unbound-local-error/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/ruby-detect-running-implementation/index.html b/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
index 0b25546..f0e3632 100644
--- a/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
+++ b/public/posts/2021-10-02/ruby-detect-running-implementation/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html b/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
index 7531bf3..55bf07d 100644
--- a/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
+++ b/public/posts/2021-10-02/ruby-then-keyword-and-case-in/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html b/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
index 9014f7c..db9120e 100644
--- a/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
+++ b/public/posts/2021-10-02/rust-where-are-primitive-types-from/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html b/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
index b3c7715..36ed4c1 100644
--- a/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
+++ b/public/posts/2021-10-02/vim-difference-between-autocmd-bufwrite-and-bufwritepre/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html b/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
index 4f0c72a..e8deba6 100644
--- a/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
+++ b/public/posts/2021-10-02/vim-swap-order-of-selected-lines/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-04-09/phperkaigi-2022-tokens/index.html b/public/posts/2022-04-09/phperkaigi-2022-tokens/index.html
index fdeb85b..13f4e82 100644
--- a/public/posts/2022-04-09/phperkaigi-2022-tokens/index.html
+++ b/public/posts/2022-04-09/phperkaigi-2022-tokens/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-04-24/term-banner-write-tool-showing-banner-in-terminal/index.html b/public/posts/2022-04-24/term-banner-write-tool-showing-banner-in-terminal/index.html
index ff70a07..9e24629 100644
--- a/public/posts/2022-04-24/term-banner-write-tool-showing-banner-in-terminal/index.html
+++ b/public/posts/2022-04-24/term-banner-write-tool-showing-banner-in-terminal/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-05-01/phperkaigi-2022/index.html b/public/posts/2022-05-01/phperkaigi-2022/index.html
index 14900ff..60e0f56 100644
--- a/public/posts/2022-05-01/phperkaigi-2022/index.html
+++ b/public/posts/2022-05-01/phperkaigi-2022/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-08-27/php-conference-okinawa-code-golf/index.html b/public/posts/2022-08-27/php-conference-okinawa-code-golf/index.html
index 1149f75..f27dc0f 100644
--- a/public/posts/2022-08-27/php-conference-okinawa-code-golf/index.html
+++ b/public/posts/2022-08-27/php-conference-okinawa-code-golf/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-08-31/support-for-communty-is-employee-benefits/index.html b/public/posts/2022-08-31/support-for-communty-is-employee-benefits/index.html
index e7ff20f..942b689 100644
--- a/public/posts/2022-08-31/support-for-communty-is-employee-benefits/index.html
+++ b/public/posts/2022-08-31/support-for-communty-is-employee-benefits/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-09-29/write-fizzbuzz-in-php-2-letters-per-line/index.html b/public/posts/2022-09-29/write-fizzbuzz-in-php-2-letters-per-line/index.html
index 5fd0050..f233361 100644
--- a/public/posts/2022-09-29/write-fizzbuzz-in-php-2-letters-per-line/index.html
+++ b/public/posts/2022-09-29/write-fizzbuzz-in-php-2-letters-per-line/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-10-23/phperkaigi-2023-unused-token-quiz-1/index.html b/public/posts/2022-10-23/phperkaigi-2023-unused-token-quiz-1/index.html
index 95bb097..bb170c7 100644
--- a/public/posts/2022-10-23/phperkaigi-2023-unused-token-quiz-1/index.html
+++ b/public/posts/2022-10-23/phperkaigi-2023-unused-token-quiz-1/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-10-28/setup-server-for-this-site/index.html b/public/posts/2022-10-28/setup-server-for-this-site/index.html
index f416358..5dd20c2 100644
--- a/public/posts/2022-10-28/setup-server-for-this-site/index.html
+++ b/public/posts/2022-10-28/setup-server-for-this-site/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2022-11-19/phperkaigi-2023-unused-token-quiz-2/index.html b/public/posts/2022-11-19/phperkaigi-2023-unused-token-quiz-2/index.html
index 6056e47..ac66883 100644
--- a/public/posts/2022-11-19/phperkaigi-2023-unused-token-quiz-2/index.html
+++ b/public/posts/2022-11-19/phperkaigi-2023-unused-token-quiz-2/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2023-01-10/phperkaigi-2023-unused-token-quiz-3/index.html b/public/posts/2023-01-10/phperkaigi-2023-unused-token-quiz-3/index.html
index 39dbf92..0f6cab0 100644
--- a/public/posts/2023-01-10/phperkaigi-2023-unused-token-quiz-3/index.html
+++ b/public/posts/2023-01-10/phperkaigi-2023-unused-token-quiz-3/index.html
@@ -20,13 +20,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/2023-03-10/rewrite-this-blog-generator/index.html b/public/posts/2023-03-10/rewrite-this-blog-generator/index.html
index f45df4d..d0e82bd 100644
--- a/public/posts/2023-03-10/rewrite-this-blog-generator/index.html
+++ b/public/posts/2023-03-10/rewrite-this-blog-generator/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/posts/index.html b/public/posts/index.html
index 345def6..e9b0ab2 100644
--- a/public/posts/index.html
+++ b/public/posts/index.html
@@ -18,13 +18,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/conference/index.html b/public/tags/conference/index.html
index 02521a8..ac255da 100644
--- a/public/tags/conference/index.html
+++ b/public/tags/conference/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/cpp/index.html b/public/tags/cpp/index.html
index 3e069c9..fc83ba9 100644
--- a/public/tags/cpp/index.html
+++ b/public/tags/cpp/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/cpp17/index.html b/public/tags/cpp17/index.html
index 832693f..f170658 100644
--- a/public/tags/cpp17/index.html
+++ b/public/tags/cpp17/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/note-to-self/index.html b/public/tags/note-to-self/index.html
index 8de640b..32ce8af 100644
--- a/public/tags/note-to-self/index.html
+++ b/public/tags/note-to-self/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/php/index.html b/public/tags/php/index.html
index bea40e0..32c4690 100644
--- a/public/tags/php/index.html
+++ b/public/tags/php/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/phpcon/index.html b/public/tags/phpcon/index.html
index 26758e5..5af6ba0 100644
--- a/public/tags/phpcon/index.html
+++ b/public/tags/phpcon/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/phperkaigi/index.html b/public/tags/phperkaigi/index.html
index 5af63f3..03d83ca 100644
--- a/public/tags/phperkaigi/index.html
+++ b/public/tags/phperkaigi/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/python/index.html b/public/tags/python/index.html
index 3cdcb06..f5f6b76 100644
--- a/public/tags/python/index.html
+++ b/public/tags/python/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/python3/index.html b/public/tags/python3/index.html
index a40e37e..8c742da 100644
--- a/public/tags/python3/index.html
+++ b/public/tags/python3/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/ruby/index.html b/public/tags/ruby/index.html
index bd25370..a5033b9 100644
--- a/public/tags/ruby/index.html
+++ b/public/tags/ruby/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/ruby3/index.html b/public/tags/ruby3/index.html
index 1eeac99..9793cfb 100644
--- a/public/tags/ruby3/index.html
+++ b/public/tags/ruby3/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/rust/index.html b/public/tags/rust/index.html
index 4aa764f..dd9ff39 100644
--- a/public/tags/rust/index.html
+++ b/public/tags/rust/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>
diff --git a/public/tags/vim/index.html b/public/tags/vim/index.html
index 97d011a..d61d320 100644
--- a/public/tags/vim/index.html
+++ b/public/tags/vim/index.html
@@ -19,13 +19,16 @@
             <a href="/">REPL: Rest-Eat-Program Loop</a>
           </li>
           <li>
-            <a href="/about">About</a>
+            <a href="/about/">About</a>
           </li>
           <li>
-            <a href="/posts">Posts</a>
+            <a href="/posts/">Posts</a>
           </li>
           <li>
-            <a href="/slides">Slides</a>
+            <a href="/slides/">Slides</a>
+          </li>
+          <li>
+            <a href="/tags/">Tags</a>
           </li>
         </ul>
       </nav>