Add LICENSE for TinkyBrain v6 release

LICENSE

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+TinkyBrain v6 — Custom Non-Commercial License
+==============================================
+
+Copyright (c) 2026 Luke A. Kist.  All rights reserved.
+
+This license governs use of the TinkyBrain v6 model weights, tokenizer,
+configuration, and accompanying documentation (collectively, "the
+Materials") published at https://huggingface.co/Hoodrobot/TinkyBrain-v6.
+
+The Materials are made available under the Creative Commons
+Attribution-NonCommercial-ShareAlike 4.0 International License
+(CC BY-NC-SA 4.0), available at:
+
+  https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
+
+with the following ADDITIONAL TERMS that take precedence over any
+conflicting language in the CC BY-NC-SA 4.0 license:
+
+
+1. NON-COMMERCIAL USE PERMITTED
+   You MAY use the Materials, free of charge, without further
+   permission, for the following purposes:
+
+     (a) personal, family, or household communication;
+     (b) research and academic study, including publication;
+     (c) classroom, school, or educational use, whether public,
+         private, or homeschooled;
+     (d) non-profit organizations operating in service of people
+         with disabilities, communication needs, or accessibility
+         goals;
+     (e) speech-language pathologists and clinicians serving
+         individual patients;
+     (f) free and open-source projects whose primary purpose is
+         accessibility for non-verbal, disabled, or limited-
+         English-proficient users.
+
+
+2. COMMERCIAL USE REQUIRES PERMISSION
+   You MAY NOT, without prior written permission from the author:
+
+     (a) use the Materials in any product or service for which
+         you charge fees, license fees, subscription fees, or
+         any other compensation;
+     (b) incorporate the Materials into hardware, software, or
+         services sold or licensed to third parties;
+     (c) train derivative models on outputs of the Materials
+         and use those derivatives commercially;
+     (d) use the Materials to compete with TinkySpeak,
+         TinkyTown, TinkyBrain, or any product or service
+         offered by the author or his affiliated entities.
+
+   Commercial licensing is available. Contact:
+     Luke A. Kist
+     lukekist@gmail.com
+
+
+3. ATTRIBUTION
+   In all permitted uses, you must:
+
+     (a) retain this LICENSE file and the README.md unmodified;
+     (b) credit "TinkyBrain v6 by Luke A. Kist" in any
+         publication, product, or interface that uses the
+         Materials;
+     (c) link to https://huggingface.co/Hoodrobot/TinkyBrain-v6
+         where reasonably possible.
+
+
+4. SHARE-ALIKE
+   If you distribute the Materials, modified or unmodified, you
+   must distribute under this same license. You may not impose
+   additional restrictions beyond those in this license.
+
+
+5. NO WARRANTY
+   The Materials are provided "AS IS" without warranty of any
+   kind, express or implied. The author makes no guarantees
+   regarding fitness for a particular purpose, accuracy of
+   outputs, or absence of errors.
+
+
+6. LIMITATION OF LIABILITY
+   In no event shall the author be liable for any claim, damage,
+   or other liability arising from the use of the Materials,
+   including but not limited to use as a medical communication
+   aid, emergency communication tool, or in any context where
+   communication accuracy is critical to safety.
+
+   The Materials are intended for general augmentative and
+   alternative communication (AAC) use only. They are not a
+   medical device. They are not a substitute for human
+   communication, professional medical advice, emergency
+   services, or licensed clinical interpretation.
+
+
+7. RESPONSIBLE USE
+   You may not use the Materials, or train any derivative
+   thereof, for purposes that:
+
+     (a) discriminate against, marginalize, or harm
+         disabled, non-verbal, limited-English-proficient,
+         elderly, or otherwise vulnerable populations;
+     (b) generate misleading, fraudulent, or harmful
+         content directed at the populations served by AAC
+         technology;
+     (c) violate applicable laws regarding the rights of
+         persons with disabilities (including but not limited
+         to the Americans with Disabilities Act in the United
+         States, the Equality Act in the United Kingdom, or
+         analogous legislation elsewhere).
+
+
+8. TRADEMARK NOTICE
+   "Tinky," "TinkyBrain," "TinkySpeak," "TinkyTown," and
+   "Tinkyscan" are trademarks or trademark applications of
+   Luke A. Kist. Nothing in this license grants permission
+   to use these trademarks. Trademark rights are reserved
+   separately.
+
+
+9. SEVERABILITY
+   If any provision of this license is held unenforceable, the
+   remainder shall continue in full force and effect.
+
+
+10. GOVERNING LAW
+    This license is governed by the laws of the State of
+    Connecticut, United States of America, without regard
+    to conflict-of-laws principles.
+
+
+For commercial licensing inquiries:
+  Luke A. Kist
+  lukekist@gmail.com
+
+For the underlying CC BY-NC-SA 4.0 terms:
+  https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode