Update README.md

Update the Link of access to CMR raw data

README.md

@@ -43,7 +43,7 @@ tqdm==4.62.3
 ### Datasets and pre-processing
 Download:  
 1. **Abdominal MRI**  [Combined Healthy Abdominal Organ Segmentation dataset](https://chaos.grand-challenge.org/)  
-2. **Cardiac MRI** [Multi-sequence Cardiac MRI Segmentation dataset (bSSFP fold)](http://www.sdspeople.fudan.edu.cn/zhuangxiahai/0/mscmrseg/)  
+2. **Cardiac MRI** [Multi-sequence Cardiac MRI Segmentation dataset (bSSFP fold)](https://zmiclab.github.io/zxh/0/mscmrseg19)  
 
 **Pre-processing** is performed according to [Ouyang et al.](https://github.com/cheng-01037/Self-supervised-Fewshot-Medical-Image-Segmentation.git) and we follow the procedure on their github repository.  
 We put the pre-processed images and their corresponding labels in `./data/CHAOST2/chaos_MR_T2_normalized` folder for Abdominal MRI and `./data/CMR/cmr_MR_normalized` folder for Cardiac MRI.