Update README.md

README.md

@@ -179,6 +179,10 @@ for item in ds["test"]:
 GIT_LFS_SKIP_SMUDGE=1 git clone git@hf.co:datasets/ccmusic-database/CNPM
 cd CNPM
 ```
+
+## Mirror
+https://www.modelscope.cn/datasets/ccmusic-database/GZ_IsoTech
+
 ## Additional Information
 ### Dataset Curators
 Dichucheng Li