Correct referrer

Author: noamr

css-values-4/Overview.bs

@@ -1024,8 +1024,7 @@ URL processing model</h4>
 			[=request/destination=] is |destination|, [=request/mode=] is |corsMode|,
 			[=request/origin=] is |environmentSettings|'s [=environment settings object/origin=],
 			[=request/credentials mode=] is "same-origin", [=request/use-url-credentials flag=] is
-			set, and whose [=request/header list=] is a [=/header list=] containing a [=header=]
-			with its [=header/name=] set to "referrer" and its [=header/value=] set to |referrer|.
+			set, and whose [=request/referrer=] is |referrer|.
 
 		11. [=/Fetch=] |req|, with |taskDestination| set to |global|, and |processResponseEndOfBody|
 			set to the following steps given [=/response=] |res| and Null, failure or byte stream