[css-text-3] Make bikeshed happy

Author: frivoal

css-text-3/Overview.bs

@@ -31,6 +31,7 @@ WPT Path Prefix: /css/css-text/
 </pre>
 <pre class=link-defaults>
 spec:css-display-3; type:property; text:display
+spec:css-fonts-4; type:property; text:font-feature-settings
 </pre>
 
   <style type="text/css">
@@ -3794,7 +3795,7 @@ Tagging Content by Writing System</h2>
 	* If the [=content language=] is Korean and the [=writing system=] is unspecified,
 		or for any [=content language=] if the [=writing system=] to specified to be one of the ''Kore'', ''Hang'', or ''Jamo'' [[ISO15924]] codes,
 		then the [=writing system=] is <dfn noexport for=writing-system>Korean</dfn>.
-	* The [=writing system=] is only considered to be <dfn for=writing-system lt='known | unknown'>unknown</dfn>
+	* The [=writing system=] is only considered to be <dfn noexport for=writing-system lt='known | unknown'>unknown</dfn>
 		if the [=content language=] itself is unknown,
 		or if it explicitly indicates an unknown writing system.