Update README.md

README.md

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 # AURA: Unified Multimodal Framework for Conversational Music Editing
 
-[![arXiv](https://img.shields.io/badge/arXiv-TODO-b31b1b.svg)](https://arxiv.org/abs/TODO)
+[![arXiv](https://img.shields.io/badge/arXiv-2609.14344-b31b1b.svg)](https://arxiv.org/abs/2609.14344)
 [![GitHub](https://img.shields.io/badge/GitHub-AURA-blue.svg)](https://github.com/OpenRB-Lab/AURA)
 [![Dataset](https://img.shields.io/badge/🤗_Dataset-AURA--Chat--Edit-yellow.svg)](https://huggingface.co/datasets/OpenRB-Lab/AURA-Chat-Edit)