Update README.md

README.md

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 # DPHSIR
 
-[Paper](https://www.sciencedirect.com/science/article/pii/S092523122200073X) | [Pretrained Model](https://1drv.ms/u/s!AomvdxwcLmYImDiK2NiIkn_LjsOa?e=PPfex2)
+[Paper](http://arxiv.org/abs/2209.08240) | [Pretrained Model](https://1drv.ms/u/s!AomvdxwcLmYImDiK2NiIkn_LjsOa?e=PPfex2)
 
 **Deep Plug-and-Play Prior for Hyperspectral Image Restoration (Neurocomputing 2022)**
 
@@ -64,4 +64,4 @@ If you find our work useful for your research, please consider citing our paper
 ## Acknowledgement
 
 - We use some code from [DPIR](https://github.com/cszn/DPIR).
-- The training code of GRUNet is [QRNN3D](https://github.com/Vandermode/QRNN3D)
+- The training code of GRUNet is [QRNN3D](https://github.com/Vandermode/QRNN3D)