[css-speech-1] Fix bikeshed errors

Author: fantasai

css-speech-1/Overview.bs

@@ -18,6 +18,10 @@ At Risk: 'voice-balance', 'voice-duration', 'voice-pitch', 'voice-range', and 'v
 </pre>
 <pre class=link-defaults>
 spec:html; type:element; text:link
+spec:css2; type:value;
+	text:screen
+	text:speech
+	text:all
 </pre>
 
 <h2 id="intro">
@@ -165,7 +169,7 @@ The aural formatting model</h2>
 
 	The CSS formatting model for aural media is based on
 	a sequence of sounds and silences that occur within a nested context
-	similar to the [=visual box model=],
+	similar to the <a href="https://www.w3.org/TR/css-box-3/#box-model">visual box model</a>,
 	which we name the <dfn export lt="aural box model">aural “box” model</dfn>.
 	The aural “canvas” consists of a two-channel (stereo) space
 	and of a temporal dimension,
@@ -956,7 +960,7 @@ The 'voice-family' property</h3>
 		<dd>
 			Values are specific voice instances (e.g., Mike, comedian, mary, carlos2, "valley girl").
 			Like 'font-family' names, voice names must either be given quoted as [=strings=],
-			or unquoted as a sequence of one or more [=identifiers=].
+			or unquoted as a sequence of one or more [=CSS identifiers=].
 
 			Note: As a result, most punctuation characters, or digits at the start of each token,
 			must be escaped in unquoted voice names.
@@ -1738,7 +1742,7 @@ Inserted and replaced content</h2>
 
 
 	The following terms and abbreviations are used in this module.
-	<dl>
+	<dl noexport>
 	<dt>
 		<dfn>UA</dfn>