Fix 'module' to 'model' in quantize_dynamic doc (#43693)
Summary:
Fixes issue https://github.com/pytorch/pytorch/issues/43503
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43693
Reviewed By: malfet
Differential Revision: D23397641
Pulled By: mrshenli
fbshipit-source-id: bc216cea4f0a30c035e84a6cfebabd3755ef1305
