Explained the different console types available

Detailed the differences between the varying console types
available.

Also censored live IP with internal address and linked to
a security guide page for further information on VNC/SPICE
connections, which will be updated with more information.

Closes-Bug: 1364877
Change-Id: I5590a76d89b9d08ffb2bf690fda3b3f80df63ee7