[docs] Add cross references to `torch.transpose` and `torch.t` (#63177)

[docs] Add cross references to `torch.transpose` and `torch.t` (#63177)

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63177

**Summary**
This commit adds a link in the documentation for `torch.transpose` that
directs to `torch.t` and vice versa. These two functions are related and
it is useful for users of one to know about the other.

**Test Plan**
Continuous integration.

**Fixes**
This commit fixes #56267.

Test Plan: Imported from OSS

Reviewed By: VitalyFedyunin

Differential Revision: D30292654

Pulled By: SplitInfinity

fbshipit-source-id: 8e60cd7a598ff8b4756cb30141399dfe8e118338