[imsc] Pull Request: Update TTML2 ref to point to TTML2 2ED

palemieux has just submitted a new pull request for https://github.com/w3c/imsc:

== Update TTML2 ref to point to TTML2 2ED ==
Closes #531 

See https://github.com/w3c/imsc/pull/536

Received on Friday, 27 March 2020 21:14:20 UTC