docs: update link

[skip ci]

Author: coderbyheart

README.md

@@ -78,7 +78,7 @@ npx cdk deploy --all
 ## What messages MQTT bridge forwards
 
 According to nRF Cloud documentation,
-[Setting up a message bridge](https://docs.nrfcloud.com/Devices/Messages/SetupMessageBridge/),
+[Setting up a message bridge](https://docs.nordicsemi.com/bundle/nrf-cloud/page/Devices/MessagesAndAlerts/SetupMessageBridge.html),
 all messages under `<stage>/<team id>/m/#` are bridged. Since the messages are
 forwarded from nRF Cloud, therefore all messages are following the protocol
 described