Merge pull request #289297 from dominicbetts/release-aio-m3-bridge-tutorial-fix

AIO [M3]: Fixes in bridge tutorial

Author: prmerger-automator[bot]

articles/iot-operations/connect-to-cloud/tutorial-mqtt-bridge.md

@@ -92,7 +92,7 @@ Using Azure CLI, find the principal ID for the Azure IoT Operations Arc extensio
 ```azurecli
 export PRINCIPAL_ID=$(az k8s-extension list \
   --resource-group $RESOURCE_GROUP \
-  --cluster-name <CLUSTER-NAME> \
+  --cluster-name $CLUSTER_NAME \
   --cluster-type connectedClusters \
   --query "[?extensionType=='microsoft.iotoperations'].identity.principalId | [0]" -o tsv)
 echo $PRINCIPAL_ID
@@ -202,7 +202,8 @@ spec:
   mqttSettings:
     authentication:
       method: ServiceAccountToken
-      serviceAccountTokenSettings: {}
+      serviceAccountTokenSettings:
+        audience: aio-mq-internal
 ```
 
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