Summary: Adds docs for how to build the Android sample app and use the `YogaLayout`.
Reviewed By: emilsjolander
Differential Revision: D4557955
fbshipit-source-id: 49a3b8fde20de81a895244ffcecbd5bf392455b0
Summary: Move yoga docs into master branch so that pull requests are able to include doc updates as part of other changes.
Reviewed By: JoelMarcey
Differential Revision: D4365700
fbshipit-source-id: 2f46a88974104c454c00bcdf1257abb5c4075a68