Updated Waypoints example

Author: bfintal

README.md

@@ -55,7 +55,10 @@ require( 'waypoints/lib/noframework.waypoints.js' )
 const el = document.querySelector( '.counter' )
 new Waypoint( {
     element: el,
-    handler: () => { counterUp( el ) },
+    handler: function() { 
+        counterUp( el ) 
+        this.destroy()
+    },
     offset: 'bottom-in-view',
 } )
 ```