Update README.md

README.md

@@ -5,3 +5,8 @@ Should be able to be put onto an esp32 with for example PlatformIO and ArduinoID
 
 ### PlattformIO
 A PlatformIO ```platformio.ini``` is included with the uncommented part being for an ```ESP-32D``` and the commented part for ```ESP32-C3```
+
+## License
+This project is licensed under the Apache License 2.0 - see the [LICENSE](./LICENSE) file for details.
+
+Portions of this code were generated with the assistance of ChatGPT (OpenAI GPT-5).