Doc improvement

Author: tolyo

docs/static/examples/ng-window/ng-window.html

@@ -1,5 +1,6 @@
 <section ng-app>
-  Try disabling your network connection
+  In Chrome DevTools: Open <b>Network tab</b> → Select
+  <b>Throttling</b> dropdown -> Click <b>Offline</b> checkbox
   <div ng-window-online="online = true">Connected: {{ online }}</div>
   <div ng-window-offline="offline = true">Disconnected: {{ offline }}</div>
 </section>