[ttml2] Merge informative media timing material into Appendix I.

skynavga has just created a new issue for https://github.com/w3c/ttml2:

== Merge informative media timing material into Appendix I. ==
Generalize and rename Appendix I *Time Expression Semantics* to Root Container Region Semantics. Merge informative material from 12.4.1 *Media Timing* into Appendix I, updating this material as needed.

Editorial note from 2016-03-13.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/378 using your GitHub account

Received on Monday, 5 June 2017 01:13:36 UTC