Merge pull request saltstack#55134 from bryceml/2019.2.1

update docs to build off master instead of develop

Version 2019.2.2

Version 2019.2.1

Branch point for the 2019.8 release

Version 2019.2.0

Version 2018.3.4

Version 2019.2.0rc2

Veresion 2019.2.0rc1

Branch point for the 2019.2 release

Version 2018.3.3