Showing synchronizer notification

Change-Id: Ibc0ef77471026b48fa2e0a577adde9e43dde2a10
diff --git a/src/index.html b/src/index.html
index 591a249..0034022 100644
--- a/src/index.html
+++ b/src/index.html
@@ -7,6 +7,7 @@
     <meta name="description" content="">
     <meta name="viewport" content="width=device-width">
     <link rel="icon" type="image/png" href="http://fountainjs.io/assets/imgs/fountain.png" />
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" />
   </head>
 
   <body ng-app="app">