Add MQTT Forwarder note to README.

Author: brocaar

README.md

@@ -1,18 +1,20 @@
 # ChirpStack Gateway Bridge
 
-![Tests](https://github.com/brocaar/chirpstack-gateway-bridge/actions/workflows/main.yml/badge.svg?branch=master)
+![Tests](https://github.com/chirpstack/chirpstack-gateway-bridge/actions/workflows/main.yml/badge.svg?branch=master)
 
 ChirpStack Gateway Bridge is a service which converts LoRa<sup>&reg;</sup> Packet Forwarder protocols
 into a ChirpStack [common data-format](https://github.com/chirpstack/chirpstack/blob/master/api/proto/gw/gw.proto) (JSON and Protobuf).
 This component is part of the ChirpStack open-source LoRaWAN<sup>&reg;</sup> Network Server project.
 
+**Note:** For installation on the gateway, using the [ChirpStack MQTT Forwarder](https://www.chirpstack.io/docs/chirpstack-mqtt-forwarder/index.html)
+is the preferred solution.
+
 ## Backends
 
 The following packet-forwarder backends are provided:
 
 * [Semtech UDP packet-forwarder](https://github.com/Lora-net/packet_forwarder)
 * [Basic Station packet-forwarder](https://github.com/lorabasics/basicstation)
-* [ChirpStack Concentratord](https://github.com/brocaar/chirpstack-concentratord/)
 
 ## Integrations