Improve LeftRight documentation (#57164)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57164
Give some more indications about its performance characteristics
and when it is appropriate to use.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Reviewed By: zou3519
Differential Revision: D28064685
Pulled By: ezyang
fbshipit-source-id: dbf5e041088d7921db2111d287feb9079466f1b5
