Add nq_open question answering dataset
CONTRIBUTOR
@SBrandeis  thanks for the review, I applied your suggested changes, but CI is failing now not sure about the error.
2020-12-15T14:39:23Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-745335691
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CONTRIBUTOR
Many thanks @Nilanshrajput  !
The failing tests on CI are not related to your changes, merging master on your branch should fix them :)
If you're interested in what causes the CI to fail, checkout [this commit](https://github.com/huggingface/datasets/commit/9a0f1e20ca1e783cb14c1ab1cc2f54b0b5b201e8)
2020-12-15T16:45:02Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-745416269
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CONTRIBUTOR
@SBrandeis done!

2020-12-15T18:36:49Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-745483559
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CONTRIBUTOR
Hello @Nilanshrajput, your PR includes changes from other branches too now (485 files changed)
Would you mind creating another branch from master with your changes and opening a new PR?
2020-12-16T13:02:51Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-746255658
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CONTRIBUTOR
@SBrandeis sorry i messed up the git history, #1587 I opened this new pr! 
2020-12-16T14:23:05Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-746368088
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MEMBER
closing in favor of #1587 
2020-12-17T15:34:50Z
https://github.com/huggingface/datasets/pull/1506#issuecomment-747513709
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Added nq_open Open-domain question answering dataset.

The NQ-Open task is currently being used to evaluate submissions to the EfficientQA competition, which is part of the NeurIPS 2020 competition track.