[web-animations-1] Add reference to new WD

Author: birtles

web-animations-1/Overview.bs

@@ -83,6 +83,7 @@ Work Status: Refining
 ED: https://drafts.csswg.org/web-animations-1/
 TR: https://www.w3.org/TR/web-animations-1/
 
+Previous version: https://www.w3.org/TR/2021/WD-web-animations-1-20220908/
 Previous version: https://www.w3.org/TR/2021/WD-web-animations-1-20210518/
 Previous version: https://www.w3.org/TR/2018/WD-web-animations-1-20181011/
 Previous version: https://www.w3.org/TR/2016/WD-web-animations-1-20160913/
@@ -6350,22 +6351,10 @@ Changes since last publication {#changes-since-last-publication}
 =======================================
 
 The following changes have been made since the <a
-  href="https://www.w3.org/TR/2021/WD-web-animations-1-20210518/">18 May
-2021 Working Draft</a>:
+  href="https://www.w3.org/TR/2022/WD-web-animations-1-20220908/">8 September
+2022 Working Draft</a>:
 
--   Removed the timeline phase concept and `AnimationTimeline.phase` member.
-
--   Changed the procedure to [=play an animation=] to consistently check
-    the *auto-rewind flag* regardless of the [=effective playback rate=].
-    Previously the flag was not checked when the effective playback rate was
-    zero.
-
--   Changed the procedure to [=play an animation=] to ensure an idle animation
-    is played even when the *auto-rewind flag* is false.
-
--   Changed the procedure to [=seamlessly update the playback rate=] so that it
-    does not attempt to play an animation with a resolved start time but an
-    unresolved current time and no pending play task (i.e. a running animation).
+-   (None as yet)
 
 The <a
   href="https://github.com/w3c/csswg-drafts/commits/main/web-animations-1">changelog</a>