adding TabFact dataset
{'login': 'patil-suraj', 'id': 27137566, 'node_id': 'MDQ6VXNlcjI3MTM3NTY2', 'avatar_url': 'https://avatars.githubusercontent.com/u/27137566?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/patil-suraj', 'html_url': 'https://github.com/patil-suraj', 'followers_url': 'https://api.github.com/users/patil-suraj/followers', 'following_url': 'https://api.github.com/users/patil-suraj/following{/other_user}', 'gists_url': 'https://api.github.com/users/patil-suraj/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/patil-suraj/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/patil-suraj/subscriptions', 'organizations_url': 'https://api.github.com/users/patil-suraj/orgs', 'repos_url': 'https://api.github.com/users/patil-suraj/repos', 'events_url': 'https://api.github.com/users/patil-suraj/events{/privacy}', 'received_events_url': 'https://api.github.com/users/patil-suraj/received_events', 'type': 'User', 'site_admin': False}
[]
[]
FYI you guys are on GitHub's homepage 😍

<img width="1589" alt="Screenshot 2020-12-09 at 12 34 28" src="https://user-images.githubusercontent.com/326577/101624883-a0ecc700-39e8-11eb-8a97-11af0d036536.png">
 Yeayy 😍 🔥
Adding TabFact: A Large-scale Dataset for Table-based Fact Verification.

https://github.com/wenhuchen/Table-Fact-Checking

- The tables are stored as individual csv files, so need to download 16,573 🤯  csv files. As a result the `datasets_infos.json` file is huge (6.62 MB).
- Original dataset has nested structure where, where table is one example and each table has multiple statements,
flattening the structure here so that each statement is one example.
{'url': 'https://api.github.com/repos/huggingface/datasets/issues/1160/reactions', 'total_count': 0, '+1': 0, '-1': 0, 'laugh': 0, 'hooray': 0, 'confused': 0, 'heart': 0, 'rocket': 0, 'eyes': 0}
{'url': 'https://api.github.com/repos/huggingface/datasets/pulls/1160', 'html_url': 'https://github.com/huggingface/datasets/pull/1160', 'diff_url': 'https://github.com/huggingface/datasets/pull/1160.diff', 'patch_url': 'https://github.com/huggingface/datasets/pull/1160.patch', 'merged_at': '2020-12-09T09:12:40Z'}