[css-images] Added Lea Verou as co-editor per WG resolution

Author: LeaVerou

css-images/Overview.bs

@@ -9,6 +9,7 @@ TR: https://www.w3.org/TR/css3-images/
 Work Status: Testing
 Editor: Tab Atkins Jr., Google, http://xanthir.com/contact/
 Editor: Elika J. Etemad / fantasai, Invited Expert, http://fantasai.inkedblade.net/contact, w3cid 35400
+Editor: Lea Verou, Invited Expert, http://lea.verou.me/about, w3cid 52258
 Abstract: This module contains the features of CSS level 3 relating to the <<image>> type and some replaced elements.
 	It includes and extends the functionality of CSS level 2 [[CSS21]].
 	The main extensions compared to CSS2.1 are the generalization of the <<url>> type to the <<image>> type,