[DataPipe] Update Docstrings for Tar and ZipArchiveReader (#65500)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65500
cc VitalyFedyunin ejguan
Test Plan: Imported from OSS
Reviewed By: ezyang
Differential Revision: D31127241
Pulled By: NivekT
fbshipit-source-id: aed41aa192fe55e10ba67beda460fac70f2703c7
