camelcase GitHub in the main menu

rasbt · rasbt · commit a3b28a54d20b · 2018-10-25T14:42:20.000-05:00
diff --git a/_includes/main_menu.html b/_includes/main_menu.html
@@ -29,7 +29,7 @@
     </li>
 
     <li>
-      <a href="{{ site.external_urls.github }}">Github</a>
+      <a href="{{ site.external_urls.github }}">GitHub</a>
     </li>
   </ul>
 </div>
