[mediaqueries-5][editorial] Fixed Bikeshed issues and updated WPTs

Author: SebastianZ

mediaqueries-5/Overview.bs

@@ -1110,6 +1110,7 @@ Error Handling</h3>
 	</div>
 
 	<wpt>
+		duplicate-media-stylesheet-crash.html
 		mq-invalid-media-type-001.html
 		mq-invalid-media-type-002.html
 		mq-invalid-media-type-003.html
@@ -1519,7 +1520,7 @@ Display Resolution: the '@media/resolution' feature</h3>
 
 	The '@media/resolution' media feature describes the resolution of the output
 	device, i.e. the density of the pixels, taking into account the <a spec=cssom-view>page zoom</a>
-	but assuming a <a spec=cssom-view>pinch zoom</a> of 1.0.
+	but assuming a <a spec=cssom-view>scale factor</a> of 1.0.
 
 	The '@media/resolution' media feature is <a>false in the negative range</a>
 
@@ -2725,6 +2726,11 @@ Custom Media Queries</h2>
 		<dfn>@custom-media</dfn> = @custom-media <<extension-name>> [ <<media-query-list>> | true | false ] ;
 	</pre>
 
+	<wpt>
+		at-custom-media-basic.html
+		at-custom-media-parsing.html
+	</wpt>
+
 	The <<extension-name>> can then be used in a <a>media feature</a>.
 	It <strong>must</strong> be used in a <a>boolean context</a>;
 	using them in a normal or <a>range context</a> is a syntax error.
@@ -3563,9 +3569,9 @@ interface PreferenceObject : EventTarget {
 
 The <dfn attribute for=PreferenceObject>onchange</dfn> attribute is an [=event handler IDL attribute=] for
 the {{onchange}} [=event handler=], whose [=event handler event type=]
-is <dfn class="event" data-dfn-for="PreferenceObject">change</dfn>.
+is <dfn export class="event" data-dfn-for="PreferenceObject">change</dfn>.
 
-<div algorithm="update steps">
+<div algorithm="update steps" export>
 Whenever the [=user agent=] is aware that the state of a {{PreferenceObject}}
 instance |value| has changed, it runs the <dfn algorithm for="PreferenceObject">{{PreferenceObject}}
 update steps</dfn>:
@@ -3576,6 +3582,8 @@ update steps</dfn>:
 	1. If |document| is null or |document| is not [=Document/fully active=], terminate this algorithm.
 1. <a>Fire an event</a> named <code>change</code> at |preference|.
 
+</div>
+
 <h5 id=request-override-method>
 {{requestOverride()}} method</h5>
 
@@ -3947,6 +3955,7 @@ The following additions were made to create the First Public Working Draft of th
 		'@media/prefers-color-scheme',
 		and '@media/forced-colors' media features.
 </ul>
+</div>
 
 <h2 class="no-num" id="acknowledgments">
 Acknowledgments</h2>