Update README.md

README.md

@@ -28,6 +28,13 @@ from huggingface_hub import snapshot_download
 dataset_path = snapshot_download("InternRobotics/IROS-2025-Challenge-Manip", repo_type="dataset")
 ```
 
+Please execute this Python file to post-process the validation set.  
+```bash
+cd IROS-2025-Challenge-Manip
+python dataset_post_processing.py validation
+````
+
+
 ## Unzip the pretrain dataset
 
 ```bash