Fix the typo errror in the line #953 of the docs of 'torch/nn/modules/activation.py' (#48577)
Summary:
The title says it all.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48577
Reviewed By: ejguan
Differential Revision: D25224315
Pulled By: mrshenli
fbshipit-source-id: 8e34e9ec29b28768834972bfcdb443efd184f9ca
