Add GitLab documentation (#754)
Add GitLab documentation (#754)

* Add GitLab documentation

* Tiny bit more consistent documentation style

NuKeeperDotNet/NuKeeper,skolima/NuKeeper,AnthonySteele/NuKeeper,NuKeeperDotNet/NuKeeper,skolima/NuKeeper,NuKeeperDotNet/NuKeeper,AnthonySteele/NuKeeper,skolima/NuKeeper,NuKeeperDotNet/NuKeeper,skolima/NuKeeper,AnthonySteele/NuKeeper,AnthonySteele/NuKeeper