Update README.md

Update the license

README.md

@@ -171,3 +171,15 @@ get help for package usage or contributions, or engage in discussions about LLM
   url = {https://huggingface.co/ProtectAI/deberta-v3-base-prompt-injection},
 }
 ```
+
+## License and Usage Notice
+
+This model is released under the Apache 2.0 license. However, it was trained on one or more datasets that may be subject to more restrictive licensing terms, including non-commercial use provisions.
+
+**Please note:**
+
+- While the model itself is permissively licensed, users are responsible for reviewing the licenses of any underlying datasets that contributed to its training.
+
+- In particular, if you plan to redistribute, modify, or use the model in commercial applications, you should verify that such uses are permitted by all applicable licenses.
+
+- To avoid potential legal or financial risks, we strongly recommend that users perform their own due diligence regarding license compatibility.