[scroll-animations-1] Update ref

Author: fantasai

scroll-animations-1/Overview.bs

@@ -69,7 +69,7 @@ spec: cssom-view-1; type: dfn;
 	This specification defines both
 	programming interfaces for interacting with these concepts,
 	as well as CSS properties which apply these concepts
-	to CSS Animations [[CSS3-ANIMATIONS]].
+	to CSS Animations [[CSS-ANIMATIONS-1]].
 
 	The behavior of the CSS properties is described
 	in terms of the programming interfaces.