Updating dox for mod_rest. Ideas expressed / clarified: 1) Making clear that mod_rest isn't to be installed under VirtualHosts AND as a component. 2) Understanding some of the implications of this choice: A) Changes to user authentication B) How it affects subdomains 3) More consistent use of domain names for clarity. 4) Using different heading sizes to show scope of section. Essentially, I added all the tidbits I had to clarify in getting this to work in my own example.

[Install]
WantedBy=sockets.target

[Socket]
ListenStream=0.0.0.0:5269
ListenStream=5269
BindIPv6Only=ipv6-only
Accept=false
Service=prosody.service