Update README.md

README.md

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 ## Model Summary
 
 MedPhi-2 is a Phi-2, **2.7 billion** parameters, further trained for the biomedical domain. 
-It was proposed in MedExQA paper [(arxiv)](https://arxiv.org/abs/2406.06331).
+It was proposed in MedExQA paper.
 
-<h1 align="center">  🧑‍⚕️ MedExQA  </h1>
-<h3 align="center"> Medical Question Answering Benchmark with Multiple Explanations </h3>
+<h1>  🧑‍⚕️ MedExQA  </h1>
+<h3> Medical Question Answering Benchmark with Multiple Explanations </h3>
 
-<p align="center">
+<p>
  📄 <a href="https://arxiv.org/abs/2406.06331" target="_blank">Paper</a> • ⏬ <a href="https://huggingface.co/datasets/bluesky333/MedExQA" target="_blank">Dataset</a>  • ⚕️ <a href="https://huggingface.co/bluesky333/medphi2" target="_blank">MedPhi2</a><br>
 </p>