Update README.md

README.md

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-license: apache-2.0
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+---
+license: apache-2.0
+---
+
+# Dataset Usage Notice
+
+Thank you for using this dataset. This dataset is provided and maintained by **Puhuilab**.
+
+## Attribution Requirement
+
+**You are strictly required to credit the source of this dataset in all types of usage.**
+
+Whether used for research, commercial applications, demonstrations, publications, or any other purpose, you **must** include the following attribution clearly:
+
+Dataset provided by Puhuilab (https://github.com/puhuilab)
+
+This attribution should appear in your papers, project documentation, product descriptions, or any public-facing materials that involve the use of this dataset.
+
+## Terms of Use
+
+- This dataset is provided for lawful and legitimate research and development purposes only.
+- For questions, permissions, or collaboration opportunities, please contact Puhuilab via the official GitHub page or email.
+
+## Acknowledgment
+
+We appreciate your interest and support for Puhuilab.