update license

README.md

@@ -199,3 +199,24 @@ from medvision_ds.utils.preprocess_utils import (
     - [medvision_ds/datasets/Ceph_Biometrics_400/preprocess_biometry.py](https://huggingface.co/datasets/YongchengYAO/MedVision/blob/main/src/medvision_ds/datasets/Ceph_Biometrics_400/preprocess_biometry.py)
     - [medvision_ds/datasets/FeTA24/preprocess_biometry.py](https://huggingface.co/datasets/YongchengYAO/MedVision/blob/main/src/medvision_ds/datasets/FeTA24/preprocess_biometry.py)
 
+<br/>
+
+# License: CC-BY-NC-4.0
+
+This repository is released under CC-BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/).
+
+✅ **What you can do**
+- Copy and redistribute the material in any medium or format.
+- Adapt, remix, transform, and build upon the material.
+- Use it privately or in non-commercial educational, research, or personal projects.
+
+🚫 **What you cannot do**
+- Use the material for commercial purposes
+
+📄 **Requirement**
+
+| **Requirement**        | **Description**                                              |
+| ---------------------- | ------------------------------------------------------------ |
+| **Attribution (BY)**   | You must give appropriate credit, provide a link to [this dataset](https://huggingface.co/datasets/YongchengYAO/MedVision), and indicate if changes were made. |
+| **NonCommercial (NC)** | You may not use the material for commercial purposes.        |
+| **Indicate changes**   | If you modify the work, you must note that it has been changed. |