Merge pull request w3c#102 from WICG/demo-center

Update the demo center

Author: Jihye Hong

demo/calendar/index.html

@@ -191,5 +191,5 @@
       </div>
     </div>
   </body>
-  <script type="text/javascript" src="spatial-focus-navigation.js"></script>
+  <script src="../../polyfill/spatnav-heuristic.js"></script>
 </html>