Add evaluation results on the amazon config and test split of squadshifts

Update README.md

Update README.md

Add evaluation results on the squad_v2 config of squad_v2 (#5)

Fix typo

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Update README.md

draft update for the model card

Update README.md

Update README.md

add language tag

Update README.md

Update README.md

Update README.md

Update README.md

Add license info

Migrate model card from transformers-repo

Update to v2