pytorch

f03f9ad6 - update clone doc (#42931)

update clone doc (#42931) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/42931 Reviewed By: zhangguanheng66 Differential Revision: D23083000 Pulled By: albanD fbshipit-source-id: d76d90476ca294763f204c185a62ff6484381c67