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

Author: svgeesus

css-color-5/Overview.bs

@@ -3910,6 +3910,14 @@ This specification adds a way to ensure adequate contrast for text whose backgro
 </h3>
 
 <ul>
+	<li>Removed special casing of 100% from the color-mix() algorithm,
+		thus avoiding a discontinuity near fully-transparent colors
+		(<a href="https://github.com/w3c/csswg-drafts/issues/14014">Issue 14014</a>)
+	</li>
+	<li>
+		Guarded against division by zero in the color-mix() algorithm
+		(<a href="https://github.com/w3c/csswg-drafts/issues/14013">Issue 14013</a>)
+	</li>
 	<li>Added a backlink from Color Interpolation in this specification,
 		to the same section in CSS Color 4 where most of this is defined
 		(<a href="https://github.com/w3c/csswg-drafts/issues/13788">Issue 13788</a>)