[css-speech-1][editorial] Replace deprecated <uri> by <url>

Author: cdoublev

css-speech-1/Overview.bs

@@ -752,7 +752,7 @@ The 'cue-before' and 'cue-after' properties</h3>
 
 	<pre class=propdef>
 	Name: cue-before, cue-after
-	Value: <<uri>> <<decibel>>? | none
+	Value: <<url>> <<decibel>>? | none
 	Initial: none
 	Applies to: all elements
 	Inherited: no
@@ -775,9 +775,9 @@ The 'cue-before' and 'cue-after' properties</h3>
 	compared to SSML's <code>audio</code> element.
 
 	<dl dfn-type=value dfn-for="cue-before,cue-after">
-		<dt><dfn><<uri>></dfn>
+		<dt><dfn><<url>></dfn>
 		<dd>
-			The URI designates an auditory icon resource.
+			The <l spec=url>[=/URL=]</l> designates an auditory icon resource.
 			When a user agent is not able to render the specified auditory icon
 			(e.g. missing file resource, or unsupported audio codec),
 			it is recommended to produce an alternative cue, such as a bell sound.
@@ -1847,4 +1847,4 @@ No new privacy considerations have been reported on this specification.
 
 <h2 class=no-num id=security>Security Considerations</h2>
 
-No new security considerations have been reported on this specification.
+No new security considerations have been reported on this specification.