[css-color-4] Consistently use term analogous components

Author: svgeesus

css-color-4/Overview.bs

@@ -4423,12 +4423,12 @@ Interpolating with Missing Components</h3>
 	in the input colors,
 	and compare them to the components of the
 	[=interpolation color space=].
-	If any [=analogous=] [=missing components=] are found,
+	If any [=analogous components=] which are [=missing components=] are found,
 	they will be <strong>carried forward</strong>
 	and re-inserted in the converted color
 	before linear interpolation takes place.
 
-	The <dfn export>analogous components</dfn> are as follows:
+	The <dfn export>analogous components</dfn>  are as follows:
 
 	<table>
 		<tr>