[skip ci] Document '[skip ci]' (#55418)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/55418
Test Plan: Imported from OSS
Reviewed By: janeyx99
Differential Revision: D27609269
Pulled By: driazati
fbshipit-source-id: 6ce562950ee35e029f0bfa3d0fffbbcc28265a7a
