[css-color-4][editorial] minor clarification

Author: svgeesus

css-color-4/Overview.bs

@@ -5326,7 +5326,8 @@ Gamut Mapping
 		to be in gamut of a destination color space |destination|:
 
 		<ol>
-			<li>let |origin_OKLCH| be |origin| converted to the OKLCH color space</li>
+			<li>let |origin_OKLCH| be |origin| converted
+				from |origin color space| to the OKLCH color space</li>
 			<li>if the Lightness of |origin_OKLCH| is greater than or equal to 100%,
 				return { 1 1 1 origin.alpha } in |destination|</li>
 			<li>if the Lightness of |origin_OKLCH| is less than than or equal to 0%,