can't identify project on Windows

[shenhai-ran]

I am new to this and probably I am doing something wrong.

I use neovim on Windows, if I understand this plugin correctly, I should able to see recent project if I open any file under a GIT repo.
But I don't see anything in Telescope project window, it is always empty.

Do I need to do some config, or add project manually?

Thanks for your help!