[css-color-5][editorial] Update changes

Author: svgeesus

css-color-5/Overview.bs

@@ -2642,6 +2642,10 @@ No new privacy considerations have been reported on this specification.
 </h3>
 
 <ul>
+	<!-- to 18 Oct 2022 -->
+	<li>Consistent capitalization of Oklab and Oklch</li>
+	<li>Acessibility improvements for color swatches</li>
+	<li>Acessibility improvements for diagrams</li>
 	<!-- to 6 Sept 2022 -->
 	<li>Fixed unwanted clipping of some color swatches</li>
 	<li>Improve alternative text for some figures</li>