Fix ScriptModule docstring (#48608)
Summary:
Fixes a typo in `ScriptModule`'s docstring and converts it to the raw format (`r"""...`).
Fixes https://github.com/pytorch/pytorch/issues/48634
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48608
Reviewed By: anjali411
Differential Revision: D25242022
Pulled By: gmagogsfm
fbshipit-source-id: 5199868af999c6c360c7dd5e2813659f1028acab
