Update README.md

Author: thinkwee

SRDD/README.md

@@ -19,3 +19,6 @@ Welcome to SRDD (Software Requirement Description Dataset), a large prompted dat
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+# License
+The SRDD dataset is licensed under **CC BY-NC 4.0**. This license explicitly permits non-commercial use of the data. We would like to emphasize that any models trained using these datasets should strictly adhere to the non-commercial usage restriction and should be employed exclusively for research purposes.