Add # to channel name

Co-authored-by: Justin du Coeur, AKA Mark Waks <jducoeur@gmail.com>

Author: valencik

about/contributing.html

@@ -32,7 +32,7 @@ <h2>Other Ways To Contribute</h2>
       A PR is always welcome, whether code changes or documentation improvements, and asking questions helps clarify behaviors for everyone.
       Any participation is greatly valued!</p>
 
-      <p>If you are looking for a place to start with a technical contribution, consider dropping by the 'starting-contributing' channel on discord, or checking out our <a href=https://github.com/orgs/typelevel/projects/1/views/1>Good First Issues board</a>.</p>
+      <p>If you are looking for a place to start with a technical contribution, consider dropping by the '#starting-contributing' channel on discord, or checking out our <a href=https://github.com/orgs/typelevel/projects/1/views/1>Good First Issues board</a>.</p>
 
 
     </div>