new: add Apache 2.0 license files

README.md

@@ -81,4 +81,24 @@ To know more about subtitles, see: [SUBTITLES.md](docs/SUBTITLES.md)
 ## Resources
 
 See [Resource's README.md](data/resources/README.md) to handle the resource files (list of records, audio files,
-and subtitles).
+and subtitles).
+
+## License
+
+This project is licensed under the Apache License 2.0. See the [LICENSE](LICENSE) file for details.
+
+```
+Copyright 2026 Antoine Jaury
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```