DOC: add note for torch.clamp() special case min > max See #45664 (#56367)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/45664
This PR adds a note to the documentation for `torch.clamp()` to alert users to a special case: If `min` is greater than `max`, all values are set to the `max` value.
Also, an example was added after the first code example. And this one is referenced in the note.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56367
Reviewed By: ezyang
Differential Revision: D27960553
Pulled By: mruberry
fbshipit-source-id: 9dc6016ccacebe87c809a0dd9f557b4aea0ae6f5
