Add LICENSE file

LICENSE

@@ -0,0 +1,18 @@
+Tencent is pleased to support the open source community by making Youtu-Embedding available.
+
+Copyright (C) 2025 Tencent. All rights reserved. 
+
+Youtu-Embedding is licensed under the License Terms of Youtu-Embedding.
+
+For avoidance of doubts, Youtu-Embedding refers only to the inference code, training code, parameters and the weights made publicly available by Tencent in accordance with the License Terms of Youtu-Embedding.
+
+
+License Terms of Youtu-Embedding:
+--------------------------------------------------------------------
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+1. Youtu-Embedding IS NOT INTENDED FOR USE WITHIN THE EUROPEAN UNION.
+
+2. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.