Matthew Treinish 841b75e6b6
Add better docs on credential providers
This commit adds some better documentation with an example explaining
how to use the credential providers now in tempest/lib.

Change-Id: I9f6856645094d483f7a3f0f76a40568c28c4e9b1
2017-07-21 16:16:48 -04:00
..
2016-05-24 14:11:14 +00:00
2017-02-10 10:47:27 -08:00