[doc] Fix inconsistencies with torch.linalg.eigvalsh (#51659)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/51659
Test Plan: Imported from OSS
Reviewed By: mruberry
Differential Revision: D26234102
Pulled By: heitorschueroff
fbshipit-source-id: 6a6711c7b129cd29f2c733c635c4192caaf42d22
