Update Enwik8 broken link and information
{'login': 'mtanghu', 'id': 54819091, 'node_id': 'MDQ6VXNlcjU0ODE5MDkx', 'avatar_url': 'https://avatars.githubusercontent.com/u/54819091?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/mtanghu', 'html_url': 'https://github.com/mtanghu', 'followers_url': 'https://api.github.com/users/mtanghu/followers', 'following_url': 'https://api.github.com/users/mtanghu/following{/other_user}', 'gists_url': 'https://api.github.com/users/mtanghu/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/mtanghu/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/mtanghu/subscriptions', 'organizations_url': 'https://api.github.com/users/mtanghu/orgs', 'repos_url': 'https://api.github.com/users/mtanghu/repos', 'events_url': 'https://api.github.com/users/mtanghu/events{/privacy}', 'received_events_url': 'https://api.github.com/users/mtanghu/received_events', 'type': 'User', 'site_admin': False}
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_The documentation is not available anymore as the PR was closed or merged._
The current enwik8 dataset link give a 502 bad gateway error which can be view on https://huggingface.co/datasets/enwik8 (click the dropdown to see the dataset preview, it will show the error). This corrects the links, and json metadata as well as adds a little bit more information about enwik8.
{'url': 'https://api.github.com/repos/huggingface/datasets/issues/4950/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/4950', 'html_url': 'https://github.com/huggingface/datasets/pull/4950', 'diff_url': 'https://github.com/huggingface/datasets/pull/4950.diff', 'patch_url': 'https://github.com/huggingface/datasets/pull/4950.patch', 'merged_at': '2022-09-08T14:51:00Z'}