Upgrade README for Windows (#45553) (#45738)
Summary:
Pin the libuv versoin to v1.39 for Windows platform.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45553
Reviewed By: SciPioneer
Differential Revision: D24017246
Pulled By: mrshenli
fbshipit-source-id: ec69f864a7acfbdddd60c3d2b442294ec3e34558
Co-authored-by: gunandrose4u <52735340+gunandrose4u@users.noreply.github.com>
