[webvtt] Pull Request: Add some explanatory text about the different types of VTT files.

silviapfeiffer has just submitted a new pull request for https://github.com/w3c/webvtt:

== Add some explanatory text about the different types of VTT files. ==
Also explain that their interpretation is done by the environment,
i.e. the software that uses the file.

Closes #363 

See https://github.com/w3c/webvtt/pull/394

Received on Sunday, 15 October 2017 04:27:44 UTC