CSSURLImageValue should serialize url with quotes

Naina Raisinghani · Naina Raisinghani · commit ca5b742af7c0 · 2017-12-13T13:41:14.000+11:00
diff --git a/css-typed-om/Overview.bs b/css-typed-om/Overview.bs
@@ -2859,7 +2859,7 @@ of serializations of the contained {{CSSTransformComponent}} objects.
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 {{CSSURLImageValue}} objects are serialized to the string given by
-"url(" + {{CSSURLImageValue/url}} + ")".
+'url("' + {{CSSURLImageValue/url}} + '")'.
 
 {{CSSFontFaceValue}} Serialization {#fontfacevalue-serialization}
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