Stop using incumbent settings object

This change is editorial.

Tracking bug: whatwg/html#1430

index.html

@@ -136,7 +136,7 @@ <h2>
       </h2>
       <p>
         The following concepts, terms, and interfaces are defined in
-        [[!HTML5]], [[!ECMASCRIPT]], [[!WEBIDL]], and [[!SECURE-CONTEXTS]]:
+        [[!HTML]], [[!HTML5]], [[!ECMASCRIPT]], [[!WEBIDL]], and [[!SECURE-CONTEXTS]]:
       </p>
       <ul>
         <li>
@@ -180,8 +180,8 @@ <h2>
         </li>
         <li>
           <dfn><a href=
-          "https://www.w3.org/TR/html5/webappapis.html#incumbent-settings-object">
-          incumbent settings object</a></dfn>
+          "https://html.spec.whatwg.org/multipage/webappapis.html#current-settings-object">
+          current settings object</a></dfn>
         </li>
         <li>
           <a href=
@@ -255,7 +255,7 @@ <h2>
         the following steps:
       </p>
       <ol>
-        <li>If the <a>incumbent settings object</a> is not a <a>secure
+        <li>If the <a>current settings object</a> is not a <a>secure
         context</a>, then reject this <a>Navigator</a> object's <a>battery
         promise</a> with a "<a>SecurityError</a>" <a>DOMException</a> and abort
         these steps.