Update README.md

README.md

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 ## Summary
 
-Antlia-Learn-7B is a 7B-parameter instruction-tuned model for instructional design. It drafts concise short micro-courses and complex long-form course outlines, including learning outcomes, section structure, short practice activities, and lightweight checkpoints. The model and training approach are proprietary under a commercial license.
+Antlia-Learn-7B is a 7B-parameter instruction-tuned model for instructional design. It drafts concise short micro-courses and complex long-form course outlines, including learning outcomes, section structure, short practice activities, and lightweight checkpoints. This model is released under the GNU Affero General Public License v3.0 (AGPL-3.0).
 
 ## Intended use