Update source/installguide/hypervisor/kvm.rst

Excellent!

Co-authored-by: dahn <[email protected]>

Author: daviftorres

source/installguide/hypervisor/kvm.rst

@@ -1551,6 +1551,7 @@ To open the required ports, execute the following commands:
    DEFAULT_FORWARD_POLICY="ACCEPT"
 
 .. parsed-literal::
+   # as ufw is disabled by default but may be enabled on the system, this step is optional.
    sudo ufw enable