Update README.md

README.md

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 ## Performance
 Our model achieves **state-of-the-art (SOTA) performance** on the MultiVENT2.0 dataset in zero-shot settings. See the [official leaderboard](https://eval.ai/web/challenges/challenge-page/2507/leaderboard/6262) for detailed results.
-Additionally, you can check zero-shot performance on Tevatron2.0 in [this paper](https://www.arxiv.org/pdf/2506.09409).
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 ## Release Schedule