Add support for adding score

views/room.handlebars

@@ -14,7 +14,7 @@
     </header>
 
     <main>
-      <h2>{{name}} <img src="{{character}}"/></h2>
+      <h2>{{name}} <img src="{{character}}"/> <div class="score">0</div></h2>
 
       <button id="buzzer">
         BUZZ
@@ -47,6 +47,8 @@
           reset();
         } else if (msg.type === "close") {
           roomClosed();
+        } else if (msg.type === "score") {
+          document.querySelector('.score').innerText = msg.score;
         }
       };