Not compatible with WKF 130 and SW 4.28

[avanc]

While I tried to get this integration working I realized, that my device is using MQTT instead of HTTP PUSH to send and receive values. With some additional search I stumbled across https://github.com/Altrec/remko_mqtt-ha which uses a MQTT connection and got i running successfully.

As it took me some time to realize the differences, you might want to give a short note about the two different approaches in the Readme for other new users.