Added rabbitmq-server users tag instruction. Fix for unable to connect from remote connections

docs/getting-started/brokers/rabbitmq.rst

@@ -54,6 +54,10 @@ allow that user access to that virtual host:
 
     $ sudo rabbitmqctl add_vhost myvhost
 
+.. code-block:: bash
+
+    $ sudo rabbitmqctl set_user_tags myuser mytag
+
 .. code-block:: bash
 
     $ sudo rabbitmqctl set_permissions -p myvhost myuser ".*" ".*" ".*"