[web-animations-2] Broken references in Web Animations Level 2

[dontcallmedom-bot]

While crawling Web Animations Level 2, the following links to other specifications were detected as pointing to non-existing anchors:

• https://drafts.csswg.org/web-animations-1/#play-state
• https://drafts.csswg.org/web-animations-1/#current-time
• https://drafts.csswg.org/web-animations-1/#monotonically-increasing
• https://drafts.csswg.org/web-animations-1/#finished-play-state
• https://drafts.csswg.org/web-animations-1/#target-effect
• https://drafts.csswg.org/web-animations-1/#active-phase
• https://drafts.csswg.org/web-animations-1/#before-phase
• https://drafts.csswg.org/web-animations-1/#after-phase
• https://drafts.csswg.org/web-animations-1/#animation-playback-rate
• https://drafts.csswg.org/web-animations-1/#before-flag
• https://drafts.csswg.org/web-animations-1/#target-element
• https://drafts.csswg.org/web-animations-1/#idle-play-state
• https://heycam.github.io/webidl/#dfn-present

_{This issue was detected and reported semi-automatically by Strudy based on data collected in webref.}