Add “fork this site” link

Author: wooorm

create-a-plugin.html

@@ -303,6 +303,7 @@ <h3 id="further-exercises"><a class="anchor" href="#further-exercises">#</a>Furt
     <footer>
       <p>made by <a href="https://github.com/wooorm">@wooorm</a> and <a href="https://github.com/unifiedjs/unifiedjs.github.io/graphs/contributors">contributors</a></p>
       <p>view the project on <a href="https://github.com/unifiedjs/unified">GitHub</a></p>
+      <p><a href="https://github.com/unifiedjs/unifiedjs.github.io">fork this site</a></p>
       <p>☔</p>
     </footer>
     <script src="index.js"></script>

create-an-editor.html

@@ -550,6 +550,7 @@ <h3 id="further-exercises"><a class="anchor" href="#further-exercises">#</a>Furt
     <footer>
       <p>made by <a href="https://github.com/wooorm">@wooorm</a> and <a href="https://github.com/unifiedjs/unifiedjs.github.io/graphs/contributors">contributors</a></p>
       <p>view the project on <a href="https://github.com/unifiedjs/unified">GitHub</a></p>
+      <p><a href="https://github.com/unifiedjs/unifiedjs.github.io">fork this site</a></p>
       <p>☔</p>
     </footer>
     <script src="index.js"></script>

script/markdown/plugin/suffix.js

@@ -19,6 +19,11 @@ function section() {
           'view the project on ',
           h('a', {href: 'https://github.com/unifiedjs/unified'}, 'GitHub')
         ]),
+        h('p', [
+          h('a', {
+            href: 'https://github.com/unifiedjs/unifiedjs.github.io'
+          }, 'fork this site')
+        ]),
         h('p', '☔')
       ])
     );

using-unified.html

@@ -378,6 +378,7 @@ <h3 id="further-exercises"><a class="anchor" href="#further-exercises">#</a>Furt
     <footer>
       <p>made by <a href="https://github.com/wooorm">@wooorm</a> and <a href="https://github.com/unifiedjs/unifiedjs.github.io/graphs/contributors">contributors</a></p>
       <p>view the project on <a href="https://github.com/unifiedjs/unified">GitHub</a></p>
+      <p><a href="https://github.com/unifiedjs/unifiedjs.github.io">fork this site</a></p>
       <p>☔</p>
     </footer>
     <script src="index.js"></script>