fix typos in jit_language_reference.rst (#68706)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/68700
- indent problem
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68706
Reviewed By: mruberry
Differential Revision: D32598916
Pulled By: jbschlosser
fbshipit-source-id: 42af216e83fb48bbd311fc3d41fc3e8f5a2fef08
