[css-fonts-4][editorial] fix bikeshed autolinking

Author: svgeesus

css-fonts-4/Overview.bs

@@ -374,7 +374,7 @@ Syntax of <<generic-font-family>>
 <pre class=prod>
 	<dfn><<generic-font-family>></dfn> = <<generic-font-script-specific>>| <<generic-font-complete>> | <<generic-font-incomplete>>
 	<dfn><<generic-font-script-specific>></dfn> = <l>''generic(fangsong)''</l> | <l>''generic(kai)''</l> | <l>''generic(khmer-mul)''</l> |  <l>''generic(nastaliq)''</l>
-	<dfn><<generic-font-complete>></dfn> = <l>''serif''</l> | <l>''sans-serif''</l> | <l>''system-ui''</l> | <l>''cursive''</l> | <l>''fantasy''</l> | <l>''math''</l> | <l>''monospace''</l>
+	<dfn><<generic-font-complete>></dfn> = <l>''serif''</l> | <l>''sans-serif''</l> | <l>''system-ui''</l> | <l>''cursive''</l> | <l>''fantasy''</l> | <l>''font-family/math''</l> | <l>''monospace''</l>
 	<dfn><<generic-font-incomplete>></dfn> = <l>''ui-serif''</l> | <l>''ui-sans-serif''</l> | <l>''ui-monospace''</l> | <l>''ui-rounded''</l>
 </pre>
 
@@ -1341,7 +1341,7 @@ Font size: the 'font-size' property</h3>
 
 	<pre class="propdef">
 	Name: font-size
-	Value: <<absolute-size>> | <<relative-size>> | <<length-percentage [0,∞]>> | math
+	Value: <<absolute-size>> | <<relative-size>> | <<length-percentage [0,∞]>> | ''font-size/math''
 	Initial: medium
 	Applies to: all elements and text
 	Inherited: yes