The feature; "Supports update Over the air" where is that?

[bashers222]

In the README, it mentions;

Features
Connects with the serial port of Altherma on port X10A.
Needs just an ESP32, no need for extra hardware. ESP8266 is also supported.
Queries the Altherma for selected values at defined interval.
Converts and formalizes all values in a JSON message sent over MQTT.
Easily integrates with Home Assistant's MQTT auto-discovery.
Supports update OverTheAir

Where is that feature?

[maromme]

it's explained in the read me: