How to use git in VSTS
https://manhnguyenv.visualstudio.com/_git/CustomControls
Guideline
https://docs.microsoft.com/en-us/vsts/git/tutorial/clone?view=vsts&tabs=visual-studio
https://docs.microsoft.com/en-us/vsts/git/gitquickstart?view=vsts&tabs=visual-studio
https://docs.microsoft.com/en-us/vsts/git/import-git-repository?view=vsts
