[selectors-4][editorial] Update changes

Author: svgeesus

selectors-4/Overview.bs

@@ -5205,6 +5205,7 @@ Changes since the 22 January 2026 Working Draft
 	<a href="https://www.w3.org/TR/2026/WD-selectors-4-20260122/">22 January 2026
 	Working Draft</a>:
 
+	* Updated HTML5 references to point to HTML LS instead
 	* Fixed explanation of HTML's case-matching rules. 
 		Defined the default matching of document-supplied strings.
 		(<a href="https://github.com/w3c/csswg-drafts/issues/2259">Issue 2259</a>)