Set subscription's endpoint to the push endpoint more clearly

Author: annevk

index.html

@@ -229,8 +229,8 @@ <h2>
           </li>
           <li>When the <a>push subscription</a> request has completed successfully:
             <ol>
-              <li>Set |subscription|'s {{PushSubscription/endpoint}} attribute to the [=URL=]
-              provided by the <a>push subscription</a>.
+              <li>Set |subscription|'s {{PushSubscription/endpoint}} attribute to the
+              <a>push subscription</a>'s <a>push endpoint</a>.
               </li>
               <li>If provided by the <a>push subscription</a>, set |subscription|'s
               {{PushSubscription/expirationTime}}.