refactor(index.html): comment out dist/index.js (only for production builds)

Author: landonreed

Diff for: index.html

@@ -13,7 +13,7 @@
       Only one of the following js files is needed. For development
       use example.js. For production use dist/index.js.
     -->
-    <script src="dist/index.js"></script>
+    <!-- <script src="dist/index.js"></script> -->
     <script src="/example.js"></script>
   </body>
 </html>