[presentation-api] new commits pushed by mfoltzgoogle

The following commits were just pushed by mfoltzgoogle to https://github.com/w3c/presentation-api:

* Add explanatory text to examples. (#460)

* Update examples

* Copy edits

* Respond to suggestions by chrisn@

* Fix typo
  by Mark Foltz (Google)
https://github.com/w3c/presentation-api/commit/ff5a5200a37834618a61561459e4d927b628699b

Received on Monday, 1 April 2019 23:11:31 UTC