Update docs a bit about runlevel 1.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

man/finit.8

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.Dd June 6, 2021
+.Dd Apr 22, 2023
 .\" Please adjust this date whenever revising the manpage.
 .Dt FINIT 8 SMM
 .Os Linux
@@ -148,6 +148,10 @@ the regular runlevel.  All services and TTYs in
 will be started, e.g., a
 .Cm tty [1] @console nologin
 configuration presents you with a root console without login.
+.Pp
+.Sy Note:
+by definition, single user mode does not have networking enabled.  This
+is also true for runlevel 1.
 .El
 .Sh BOOTING
 .Pp

man/finit.conf.5

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.Dd Oct 17, 2020
+.Dd Apr 22, 2023
 .Dt FINIT.CONF 5 SMM
 .Os Linux
 .Sh NAME
@@ -115,6 +115,10 @@ is the runlevel number 0-9, where 6 is reserved for reboot and 0 for
 halt.  All other can be used by operating system administrators.
 Default: 2
 .Pp
+It s recommended to keep runlevel 1 as single-user mode, because
+.Nm
+disables networking in this mode.
+.Pp
 .Sy Note:
 only read and executed in runlevel S (bootstrap).
 .It Cm run Oo LVLS Oc Ao COND Ac Ar /path/to/cmd ARGS Op -- Optional description