[css-backgrounds-4][editorial] Bert Bos no longer in CSSWG, moved to former editor

Author: svgeesus

css-backgrounds-4/Overview.bs

@@ -6,10 +6,10 @@ Status: ED
 Work Status: Exploring
 Group: csswg
 ED: https://drafts.csswg.org/css-backgrounds-4/
-Editor: Bert Bos, W3C, bert@w3.org, w3cid 3343
 Editor: Elika J. Etemad / fantasai, Apple, http://fantasai.inkedblade.net/contact, w3cid 35400
 Editor: Lea Verou, Invited Expert, http://lea.verou.me/about/, w3cid 52258
 Editor: Sebastian Zartner, Invited Expert, sebastianzartner@gmail.com, w3cid 64937
+Former Editor: Bert Bos, W3C, bert@w3.org, w3cid 3343
 Abstract: This module contains the features of CSS relating to the backgrounds of boxes on the page.
 Ignored Vars: width of background positioning area, width of background image, height of background positioning area, height of background image, X'
 Ignored Terms: total width