Fix ASSET dataset data URLs
CONTRIBUTOR
> Hi @tianjianjiang, thanks for the fix.
> The links should also be updated in the `dataset_infos.json` file.
> The failing tests are due to the missing tag in the header of the `README.md` file:

Hi @albertvillanova, thank you for the info! My apologies for the messy PR.

2021-11-30T19:52:28Z
https://github.com/huggingface/datasets/pull/3342#issuecomment-982967452
https://api.github.com/repos/huggingface/datasets/issues/3342
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2021-11-30T19:52:28Z
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https://avatars.githubusercontent.com/u/4812544?v=4
https://api.github.com/users/tianjianjiang/events{/privacy}
https://api.github.com/users/tianjianjiang/followers
https://api.github.com/users/tianjianjiang/following{/other_user}
https://api.github.com/users/tianjianjiang/gists{/gist_id}
https://github.com/tianjianjiang
tianjianjiang
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https://api.github.com/users/tianjianjiang/orgs
https://api.github.com/users/tianjianjiang/received_events
https://api.github.com/users/tianjianjiang/repos
https://api.github.com/users/tianjianjiang/starred{/owner}{/repo}
https://api.github.com/users/tianjianjiang/subscriptions
User
https://api.github.com/users/tianjianjiang
public
Change the branch name "master" to "main" in the data URLs, since facebookresearch has changed that.