Updated annotations for nli_tr dataset
_The documentation is not available anymore as the PR was closed or merged._ Thank you so much @[lhoestq](https://github.com/lhoestq) for the time you take to your review the PR!
This PR adds annotation tags for `nli_tr` dataset so that the dataset can be searchable wrt. relevant query parameters.

The annotations in this PR are based on the existing annotations of `snli` and `multi_nli` datasets as `nli_tr` is a machine-generated extension of those datasets.

This PR is intended only for updating the annotation labels but a followup PR will focus on updating the missing sections in the `README.md` as well.

Thanks for all your time to review it.