add bug tracker / feedback link

home.html

@@ -58,6 +58,7 @@
             <a class="dropdown-menu-item promoted-posts-only selectable_theme theme_original theme_calm" href="#">Switch to Promoted posts</a>
             <a class="dropdown-menu-item direct-messages selectable_theme theme_original theme_calm" href="#">Direct Messages</a>
             <a class="dropdown-menu-item groupmessages selectable_theme theme_original theme_calm" href="#">Group Messages</a>
+            <a class="dropdown-menu-item" href="https://github.com/twisterarmy/twister-html/issues" target="_blank">Feedback</a>
           </div>
         </a>
       </li>