Link model to paper

This PR ensures the model can be found from https://huggingface.co/papers/2409.18869.

README.md

@@ -9,7 +9,7 @@ library_name: transformers
 
 [Emu3 Team, BAAI](https://www.baai.ac.cn/english.html)
 
-| [Project Page](https://emu.baai.ac.cn) | [Paper](https://baai-solution.ks3-cn-beijing.ksyuncs.com/emu3/Emu3-tech-report.pdf?KSSAccessKeyId=AKLTgew6Kdg6RsK92QSfB2KLA&Expires=2591406552&Signature=6BvwfLVqvfww26Bhwvk3mG0FrL8%3D) | [🤗HF Models](https://huggingface.co/collections/BAAI/emu3-66f4e64f70850ff358a2e60f) |  [github](https://github.com/baaivision/Emu3)
+| [Project Page](https://emu.baai.ac.cn) | [Paper](https://huggingface.co/papers/2409.18869) | [🤗HF Models](https://huggingface.co/collections/BAAI/emu3-66f4e64f70850ff358a2e60f) |  [github](https://github.com/baaivision/Emu3)
  | [Demo](https://huggingface.co/spaces/BAAI/Emu3) |