[ttml2] Pull Request: Improve tts:rubyAlign prose syntax (#489).

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

== Improve tts:rubyAlign prose syntax (#489). ==
Closes #489.

See https://github.com/w3c/ttml2/pull/510

Received on Sunday, 24 December 2017 19:33:46 UTC