Add Traefik Forward Auth against KeyCloak

manuscript/recipes/mqtt.md

@@ -204,10 +204,4 @@ mqtt-65f4d96945-bjj44         1/1       Running   0          5m
 
 To actually **use** your new MQTT broker, you'll need to connect to any one of your nodes (```kubectl get nodes -o wide```) on port 30883 (_the nodeport service we created earlier_). More info on that, and a loadbalancer design, to follow shortly :)
 
-## Chef's Notes
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+## Chef's Notes 📓