Fix not visible code block on Quick Start

[gsautner]

Adding space for correct code block display on: Quick Start / Allow Access to Services:

[sever-sever]

What about adding a loopback interface?

set firewall ipv4 input filter rule 50 action 'accept'
set firewall ipv4 input filter rule 50 inbound-interface interface-name 'lo'
set firewall ipv4 input filter rule 50 source address '127.0.0.0/8'

As we don't expect 127.0.0.0/8 from ethX interfaces

[gsautner]

Fixed on another PR #1087