[css-color-4] avoid forward ref to color-5

Author: svgeesus

css-color-4/Overview.bs

@@ -4437,7 +4437,7 @@ Color space for interpolation</h3>
 	Colors are first converted to Lab
 	and then interpolated as Lab colors.
 	Host syntax can override the interpolation color space and specify which color space is used for interpolation.
-	For example, 'color-mix' and 'color-adjust' override the default to LCH.
+	<!-- For example, 'color-mix' and 'color-adjust' override the default to LCH. -->
 
 	The exception is that if all the <<color>>s to be interpolated
 	are sRGB values, and they are all expressed in a legacy syntax