docs: update content

docs/src/demos/Examples/CollaborativeEditing/index.vue

@@ -40,20 +40,9 @@ const getRandomElement = list => {
 
 const getRandomRoom = () => {
   return getRandomElement([
-    // HN killed it all
+    'room.1',
-    // 'room.one',
+    'room.2',
-    // 'room.two',
+    'room.3',
-    // 'room.three',
-    // 'room.four',
-    // 'room.five',
-    'room.six',
-    // 'room.seven',
-    // 'room.eight',
-    'room.nine',
-    // 'room.ten',
-    'room.eleven',
-    'room.twelve',
-    'room.thirteen',
   ])
 }