[css-color-4][editorial] wpt

Author: Chris Lilley

css-color-4/Overview.bs

@@ -5206,6 +5206,10 @@ Sample Pseudocode for the Binary Search Gamut Mapping Algorithm with Local MINDE
 			<li>return |current| as the gamut mapped color</li>
 		</ol>
 
+	<wpt>
+		parsing/gamut-mapping.html
+	</wpt>
+
 
 <!-- color(display-p3 1 1 0)
 	color(oklch 0.96476 0.24503 110.23)