fixed formatting in function rstrings in torch.autograd.functional (#45849)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/44426
The changes look like:
(compare with https://pytorch.org/docs/stable/autograd.html#torch.autograd.functional.jacobian)
and also
(compare with https://pytorch.org/docs/stable/autograd.html#torch.autograd.functional.hessian)
and lastly
(compare with https://pytorch.org/docs/stable/autograd.html#torch.autograd.functional.hvp)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45849
Reviewed By: albanD
Differential Revision: D24114223
Pulled By: janeyx99
fbshipit-source-id: bfea5f0d594933db4b2c400291d330f747f518e8
