[ttml1] Add errata items.

skynavga has just created a new issue for 
https://github.com/w3c/ttml1:

== Add errata items. ==
This is an umbrella issue to cover adding errata items for which fixes
 have already been merged to master (or gh-pages) branch.

Please view or discuss this issue at 
https://github.com/w3c/ttml1/issues/226 using your GitHub account

Received on Wednesday, 21 December 2016 15:06:48 UTC