Add reference to the angular-scroll-events on the example page

Author: g1eb

index.html

@@ -30,6 +30,8 @@ <h1>Datetime</h1>
 
   <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.0/angular.min.js" charset="utf-8"></script>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.12.0/moment.min.js" charset="utf-8"></script>
+  <script src="https://unpkg.com/angular-scroll-events@0.0.2/dist/scroll-events.min.js" charset="utf-8"></script>
+
   <script src="dist/datetime-inputs.min.js"></script>
 
   <script>