editorial: s/handle functional event/Fire functional event/ (#321)

Author: sonakshisaxena1

index.html

@@ -1132,7 +1132,7 @@ <h2>
           </li>
           <li>
             <p>
-              <a>Handle functional event</a> "`push`" using <a>PushEvent</a> on
+              <a>Fire a functional event</a> named "`push`" using <a>PushEvent</a> on
               <var>registration</var> with the following properties:
             </p>
             <dl>
@@ -1188,8 +1188,8 @@ <h2>
         <p>
           To <dfn>fire the "`pushsubscriptionchange`" event</dfn> given a <a>service worker
           registration</a> of <var>registration</var>, <var>newSubscription</var> and
-          <var>oldSubscription</var>, the <a>user agent</a> must <a>handle functional event</a>
-          "`pushsubscriptionchange`" using <a>PushSubscriptionChangeEvent</a> on
+          <var>oldSubscription</var>, the <a>user agent</a> must <a>fire a functional event</a>
+          named "`pushsubscriptionchange`" using <a>PushSubscriptionChangeEvent</a> on
           <var>registration</var> with the following properties:
         </p>
         <dl>