[doc] Fix inconsistencies with torch.linalg.eigh (#51658)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/51658
Test Plan: Imported from OSS
Reviewed By: mruberry
Differential Revision: D26234101
Pulled By: heitorschueroff
fbshipit-source-id: c1b5cc74ba0b32c49bfd843e97f957971d8be364
