Add quotes around the room name

Without the quotes, mob cannot parse the room name given in the configuration.

Author: jmp

src/main/resources/templates/room.html

@@ -150,7 +150,7 @@ <h5>History <small class="text-muted">Last 24h</small></h5>
     <h5>Integration with the mob tool</h5>
     <ul class="list-unstyled">
       <li>configure in ~/.mob</li>
-      <li><code>MOB_TIMER_ROOM=[[${room.name}]]</code></li>
+      <li><code>MOB_TIMER_ROOM=&quot;[[${room.name}]]&quot;</code></li>
     </ul>
     <ul class="list-unstyled">
       <li>start timer in cli</li>