setup: Add long description to wheel packages (#39676)
Summary:
Closes out https://github.com/pytorch/pytorch/issues/38354
For reference: https://packaging.python.org/guides/making-a-pypi-friendly-readme/
Should fill out the PyPI description as well.
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/39676
Reviewed By: malfet
Differential Revision: D21940656
Pulled By: seemethere
fbshipit-source-id: 6c39500404227047d8f24936db0697fe44a6b9e8
