Update 404.html

Author: Fluffy728

src/404.html

@@ -121,6 +121,7 @@ <h2>Not Found</h2>
       <li><a href="https://scratch.mit.edu/discuss/post/6975871/">Go To The Coding Hut Forum Post on Scratch</a></li>
       <li><a href="https://github.com/Scratch-Coding-Hut/Scratch-Coding-Hut.github.io/issues">Suggest this page or report a missing page by creating & opening an issue on our Github Repo</a></li>
       <li><a href="javascript:history.go(-1)">Go back to the previous page you were on just before this 404 Not Found error page</a></li>
+      <li><a href="https://codinghut.miraheze.org">Learn more about Coding Hut on the Wiki or help out with the wiki</a></li>
     </ul>
   </div>
 </body>