[css-position-3] Tab + fantasai to edit per CSSWG resolution.

Author: fantasai

css-position-3/Overview.bs

@@ -10,8 +10,10 @@ TR: https://www.w3.org/TR/css-position-3/
 Previous Version: https://www.w3.org/TR/2016/WD-css-position-3-20160517/
 Previous Version: https://www.w3.org/TR/2015/WD-css3-positioning-20150203/
 Previous Version: https://www.w3.org/TR/2012/WD-css3-positioning-20120207/
-Editor: Rossen Atanassov, Microsoft, ratan@microsoft.com, w3cid 49885
-Editor: Arron Eicholz, Microsoft, arronei@microsoft.com, w3cid 37934
+Editor: Elika J. Etemad / fantasai, Invited Expert, http://fantasai.inkedblade.net/contact, w3cid 35400
+Editor: Tab Atkins Jr., Google, http://xanthir.com/contact/, w3cid 42199
+Former Editor: Rossen Atanassov, Microsoft, ratan@microsoft.com, w3cid 49885
+Former Editor: Arron Eicholz, Microsoft, arronei@microsoft.com, w3cid 37934
 !Issues list: <a href="http://wiki.csswg.org/spec/css-position/">in Wiki</a>
 Abstract: This module contains defines coordinate-based positioning and offsetting schemes of <a href="https://www.w3.org/TR/CSS/">CSS</a>: [=relative positioning=], [=sticky positioning=], [=absolute positioning=], and [=fixed positioning=].
 Link Defaults: css-transforms-1 (property) transform