[ttml2] Fix typos.

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

== Fix typos. ==
3.2.1 step (3) s/specificlly/specifically/


Please view or discuss this issue at https://github.com/w3c/ttml2/issues/932 using your GitHub account

Received on Wednesday, 25 July 2018 18:23:37 UTC