DeepSpeed

0b987c0e - Fix minor comment/docstring typos in runtime and inference modules (#8046)

Fix minor comment/docstring typos in runtime and inference modules (#8046) ### PR Title Fix minor comment/docstring typos in runtime and inference modules ### PR Description While reviewing the codebase, I noticed a few small wording issues in comments and docstrings. This PR applies focused typo cleanups only, with no functional changes. ### Changes included 1. Replaced `probagation` with `propagation` in three places within activation checkpointing documentation/comments. 2. Fixed duplicated words: - `the there` -> `there` - `the the` -> `the` ### Why this change - Improves readability and professionalism of inline documentation. - Reduces confusion when searching or referencing these comments. - Keeps the change narrowly scoped, easy to review, and low risk. ### Impact - No runtime behavior changes - No API changes - No compatibility impact ### Testing - No additional tests required (comment/docstring-only updates) Signed-off-by: nathon-lee <leejianwoo@gmail.com>