Network documentation update (#1270)
Network documentation update (#1270)

* add OPT1/OPT2 to 4NIC server
* rename app to Application for verbosity
* remove trailing underscore
* reworded DHCP setting
* updated pfSense webGUI, setting passphrase

garrettr/securedrop,micahflee/securedrop,ageis/securedrop,heartsucker/securedrop,garrettr/securedrop,ehartsuyker/securedrop,conorsch/securedrop,conorsch/securedrop,garrettr/securedrop,conorsch/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,heartsucker/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,ehartsuyker/securedrop,ageis/securedrop,micahflee/securedrop,ageis/securedrop,micahflee/securedrop,conorsch/securedrop,garrettr/securedrop,micahflee/securedrop,conorsch/securedrop,heartsucker/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,ageis/securedrop