pytorch

7d01d5ef - update op bench readme (#29289)

update op bench readme (#29289) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/29289 as title Test Plan: na Reviewed By: hl475 Differential Revision: D18350580 fbshipit-source-id: 80f41cbbfda9cbcd8988b451cdfb199f2b89e49b