[css-color-5][editorial] fix autolink error

Author: svgeesus

css-color-5/Overview.bs

@@ -1008,7 +1008,7 @@ If the
 for the [=origin color=] used a different color function,
 it's first converted into the [=relative color processing space=],
 so it has meaningful values for the components,
-and [=color component keywords=] 
+and color [=component keywords=] 
 refer to the color space of the relative color,
 <em>not</em> the [=origin color=].