[css-ui-4] Bikeshed fix

Author: frivoal

css-ui-4/Overview.bs

@@ -613,7 +613,7 @@ Omitted values are set to their initial values.
 	and should prefer including all the content in the DOM.</strong>
 	<em>This feature is at risk.</em>
 
-	Issue: if we allow user-select to change to a value other than ''none'',
+	Issue: if we allow user-select to change to a value other than ''user-select/none'',
 	we need to figure out what this means for copyability, and DOM APIs.
 
 	When generated content in pseudo elements becomes selectable