[mediacapture-main] Pull Request: Use more consistent linking practices

dontcallmedom has just submitted a new pull request for https://github.com/w3c/mediacapture-main:

== Use more consistent linking practices ==
Use respec autolinks as much as possible
align with latest terminology of Permission API
fix a couple of bugs in the process
align references and their statuses with reality (mediarecorder, imagecapture, webrtc, and webaudio aren't normative references)

See https://github.com/w3c/mediacapture-main/pull/678