per_device instead of per_gpu/error thrown when argument unknown (#4618)
* per_device instead of per_gpu/error thrown when argument unknown
* [docs] Restore examples.md symlink
* Correct absolute links so that symlink to the doc works correctly
* Update src/transformers/hf_argparser.py
Co-authored-by: Julien Chaumond <chaumond@gmail.com>
* Warning + reorder
* Docs
* Style
* not for squad
Co-authored-by: Julien Chaumond <chaumond@gmail.com>