[css-ui-4] Capitalization

Author: frivoal

css-ui-4/Overview.bs

@@ -1793,7 +1793,7 @@ However, UAs supporting ''-webkit-user-select'' as an alias of 'user-select' thr
 without adverse consequences to compatibility,
 so this specification allows flexibility.
 
-<h3 id="pointer-events-control">Exclusion from Hit-testing: the 'pointer-events' Property</h3>
+<h3 id="pointer-events-control">Exclusion from Hit-testing: the 'pointer-events' property</h3>
 
 Issue: While this property modifies the normal behavior of hit-testing,
 this normal <dfn>hit-testing</dfn> is currently not specified.