Update readme with info about the new action/service

README.md

@@ -17,14 +17,15 @@ Platform | Description
 `binary_sensor` | Operational and power status binary sensors
 `sensor` | Alarms sensor and different heat pump sensors
 `switch` | Hot water and hot water boost switches
+`action`/`service` | Thermia action/service to generate debug file for issue reporting
 
 ## Supported heat pump models:
 
 The integration supports heat pumps that are supported by the underlying [Python Thermia Online API](https://github.com/klejejs/python-thermia-online-api). To see the list of supported heat pumps, please check the list of example heat pump data files in the API repository [here](https://github.com/klejejs/python-thermia-online-api/tree/main/ThermiaOnlineAPI/tests/debug_files).
 
 ## Adding support for new heat pump models:
 
-If your heat pump is not working as expected or is not in the supported heat pump list, please follow the instructions in the [Python Thermia Online API](https://github.com/klejejs/python-thermia-online-api/tree/main?tab=readme-ov-file#regarding-unsupported-models) repository to add support for your heat pump model.
+If your heat pump is not working as expected or is not in the supported heat pump list, please create a GitHub issue and attach the `thermia_debug.txt` file contents. The file can be generated by running the `thermia.debug` action/service in Home Assistant and it will be saved in the Home Assistant configuration directory.
 
 ## Setup