[scroll-animations-1] Add/shift editors per https://lists.w3.org/Archives/Public/www-style/2021Nov/0004.html

Author: fantasai

scroll-animations-1/rewrite.bs

@@ -13,10 +13,11 @@ Abstract: Defines an API and markup for creating animations that are tied to
 Editor: Brian Birtles, Invited Expert, brian@birchill.co.jp, w3cid 43194
 Editor: Botond Ballo, Mozilla, botond@mozilla.com
 Editor: Antoine Quint, Apple, graouts@apple.com, w3cid 51377
-Editor: Majid Valipour, Google, majidvp@google.com, w3cid 81464
 Editor: Olga Gerchikov, Microsoft, gerchiko@microsoft.com
 Editor: Elika J. Etemad / fantasai, Invited Expert, http://fantasai.inkedblade.net/contact, w3cid 35400
+Editor: Robert Flack, Google
 
+Former Editor: Majid Valipour, Google, majidvp@google.com, w3cid 81464
 Former editor: Mantaroh Yoshinaga
 Former editor: Stephen McGruer, Google, smcgruer@google.com
 Markup Shorthands: markdown yes