Fix typo. (#58728)
Summary:
Fix typo in docs and comments.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58728
Reviewed By: mruberry
Differential Revision: D28603612
Pulled By: H-Huang
fbshipit-source-id: b3cd8f6f19354201d597254d0b3cb4e2062471ab