[ttml2] Pull Request: Add missing 'prohibited' value to 'tts:validation' in schemas (#977).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Add missing 'prohibited' value to 'tts:validation' in schemas (#977). ==
Closes #977.

See https://github.com/w3c/ttml2/pull/995

Received on Monday, 10 September 2018 16:02:18 UTC