Create model card for pre-trained NLI models.
Author: easonnie
Pull request: yes
Labels: name: model card

# What does this PR do?

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Fixes # (issue)


## Before submitting
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 albert, bert, XLM: @LysandreJik 
 GPT2: @LysandreJik, @patrickvonplaten
 tokenizers: @mfuntowicz
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 Benchmarks: @patrickvonplaten
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 nlp datasets: [different repo](https://github.com/huggingface/nlp)
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Comments:
Hi @julien-c, thank you so much for the pointer. I have added the dataset identifier and license.

Thanks! Your model is now linked from https://huggingface.co/datasets/anli (and the other datasets)