Update index.html

Author: annevk

index.html

@@ -233,7 +233,7 @@ <h3>
                 A JSON object consisting of the following members, all analogous to Notifications
                 API features, though sometimes with a slightly stricter type. Apart from
                 <code>title</code> all members are derived from the {{NotificationOptions}}
-                dictionary and are expected to be maintained in tandem. [[NOTIFICATIONS]]
+                dictionary and to be maintained in tandem. [[NOTIFICATIONS]]
               </p>
               <dl>
                 <dt>
@@ -690,8 +690,8 @@ <h3>
             </li>
             <li>
               <p>
-                If the [=action/navigation URL=] of any [=/action=] of <var>notification</var>'s
-                [=notification/actions=] is null, then return failure.
+                If the [=notification action/navigation URL=] of any [=/notification action=] of
+                <var>notification</var>'s [=notification/actions=] is null, then return failure.
               </p>
             </li>
             <li>