fixing documentation, issue 22697 (#23268)
Summary:
As fmassa commented :
> Agree, it should probably be weight, start, end
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23268
Differential Revision: D16493403
Pulled By: zou3519
fbshipit-source-id: 51ed07f6f7abdbd41dc323570aed41d804fa9c1b
