hellaswag: add non-empty description to fix metadata issue
{'login': 'julien-c', 'id': 326577, 'node_id': 'MDQ6VXNlcjMyNjU3Nw==', 'avatar_url': 'https://avatars.githubusercontent.com/u/326577?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/julien-c', 'html_url': 'https://github.com/julien-c', 'followers_url': 'https://api.github.com/users/julien-c/followers', 'following_url': 'https://api.github.com/users/julien-c/following{/other_user}', 'gists_url': 'https://api.github.com/users/julien-c/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/julien-c/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/julien-c/subscriptions', 'organizations_url': 'https://api.github.com/users/julien-c/orgs', 'repos_url': 'https://api.github.com/users/julien-c/repos', 'events_url': 'https://api.github.com/users/julien-c/events{/privacy}', 'received_events_url': 'https://api.github.com/users/julien-c/received_events', 'type': 'User', 'site_admin': False}
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['The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_4810). All of your documentation changes will be reflected on that endpoint.'
 'Are the `metadata JSON file` not on their way to deprecation? 😆😇\r\n\r\nIMO, more generally than this particular PR, the contribution process should be simplified now that many validation checks happen on the hub side.\r\n\r\nKeeping this open in the meantime to get more potential feedback!']
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