[css-color-4][editorial] Update changes

Author: Chris Lilley

css-color-4/Overview.bs

@@ -6389,6 +6389,10 @@ Changes</h2>
 </h3>
 
 <ul>
+	<!-- to  7 Feb 2023 -->
+	<li>Changed to allow all predefined color spaces for interpolation</li>
+	<li>Clarified that for color(), three parameters (RGB or XYZ) are required</li>
+	<li>Clarified serialization of named colors, system colors, and transparent</li>
 	<!-- to 14 Jan 2023 -->
 	<li>Define specified value for Lab, LCH, Oklab, Oklch</li>
 	<li>Define specified value fro other sRGB colors</li>