[BT] Device Tracker & Presence separation and clarification (#1880)

docs/README.md

@@ -77,7 +77,9 @@ Support open-source development through sponsorship and gain exclusive access to
 * BLE to MQTT gateway, tens of [Bluetooth devices](https://compatible.openmqttgateway.com/index.php/devices/ble-devices/) supported thanks to Theengs Decoder library. The plug uses an ESP32 acting as a BLE to Wifi gateway to scan, decode and forward the data of the nearby sensors,
 * Smart plug that can be controlled remotely,
 * Energy consumption monitoring,
-* Presence detection (beta).
+* Device tracker,
+* Presence detection (beta),
+* Local connectivity first.
 
 [![Theengs plug view](./img/Theengs-Plug-OpenMQTTGateway.png)](https://shop.theengs.io/products/theengs-plug-smart-plug-ble-gateway-and-energy-consumption)