[css-animations-1] animation-delay is not animatable (w3c#4089)

Author: ewilligers

css-animations-1/Overview.bs

@@ -719,7 +719,7 @@ The 'animation-delay' property</h3>
 	Initial: 0s
 	Applies to: all elements
 	Inherited: no
-	Animatable: no
+	Animation type: not animatable
 	Percentages: N/A
 	Computed value: list, each item a duration
 	Canonical order: per grammar