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

Author: svgeesus

css-color-5/Overview.bs

@@ -3075,6 +3075,13 @@ No new privacy considerations have been reported on this specification.
 </h3>
 
 <ul>
+	<!-- to 7 November 2023 -->
+	<li>Ported forward the larger list of rectangular color spaces from CSS Color 4</li>
+	<li>Correction to the grammar for custom params (whitespace separated, not comma separated)</li>
+	<li>Corrections to the grammar of ''device-cmyk()'' which was missing ''none'', and the previous (legacy) syntax from CSS GCPM</li>
+	<li>''color-mix()'' was missing from the grammar of the color type</li>
+	<li>Clarified serialization of specified RCS values</li>
+	<li>Added the ''light-dark()'' function</li>
 	<!-- to 30 Aug 2023 -->
 	<li>Corrected color-mix percent normalization algorithm to include explicit 50% edge case</li>
 	<li>Updated HSL example which still used gamut mapping before sRGB to HSL conversion step</li>