GitLab

- Update title
- Remove metrics

Change title to clarify the model description

- Remove metrics until tested on other xquad benchmarks

Merge bart generate into default generate

Co-Authored-By: Thomas Wolf <thomwolf@users.noreply.github.com>

Reference: https://github.com/huggingface/transformers/pull/1778#issuecomment-567675530

cc @patrickvonplaten and @dreasysnail

- Clarify that the model is not trained on the evaluation dataset

- Fix path of tokenizer
- Clarify that the model is not trained on the evaluation set