[scroll-animations] Update Group and URL in spec (w3c#4334)

Author: majido

scroll-animations-1/Overview.bs

@@ -4,7 +4,9 @@ Title: Scroll-linked Animations
 Group: CSSWG
 Status: UD
 Work Status: exploring
-ED: https://wicg.github.io/scroll-animations/
+Group: CSSWG
+URL: https://drafts.csswg.org/scroll-animations-1/
+ED: https://drafts.csswg.org/scroll-animations-1/
 Shortname: scroll-animations
 Abstract: Defines an API and markup for creating animations that are either
           triggered by or tied to the scroll offset of a scroll container.
@@ -13,7 +15,6 @@ Editor: Botond Ballo <botond@mozilla.com>
 Editor: Stephen McGruer <smcgruer@google.com>
 Editor: Antoine Quint <graouts@apple.com>
 Former editor: Mantaroh Yoshinaga
-!Issue Tracking: <a href="https://github.com/WICG/scroll-animations/issues">GitHub Issues</a>
 </pre>
 <pre class=anchors>
 urlPrefix: https://w3c.github.io/web-animations/; type: dfn; spec: web-animations