[css-animations-2] Inline definition for <timeline-name>. #8245

Author: fantasai

css-animations-2/Overview.bs

@@ -536,7 +536,7 @@ Animatable: no
 </pre>
 
 <pre class=prod>
-<dfn>&lt;single-animation-timeline></dfn> = auto | none | <<timeline-name>> | <<scroll()>> | <<view()>>
+<dfn>&lt;single-animation-timeline></dfn> = auto | none | <<custom-ident>> | <<scroll()>> | <<view()>>
 </pre>
 
 The 'animation-timeline' property is similar to properties like 'animation-name'
@@ -556,7 +556,7 @@ the following effects:
 :   <dfn>none</dfn>
 ::  The animation is not associated with a [=timeline=].
 
-:   <dfn><<timeline-name>></dfn>
+:   <dfn><<custom-ident>></dfn>
 ::  If a named [=scroll progress timeline=] or [=view progress timeline=]
     is in scope on this element,
     use the referenced timeline