Update documentation to reflect "[Channel]->Modes" changes

No longer mention "[Channel]->Key" and "[Channel]->MaxUsers".

man/ngircd.conf.5.tmpl

@@ -1,7 +1,7 @@
 .\"
 .\" ngircd.conf(5) manual page template
 .\"
-.TH ngircd.conf 5 "Jan 2020" ngIRCd "ngIRCd Manual"
+.TH ngircd.conf 5 "Apr 2020" ngIRCd "ngIRCd Manual"
 .SH NAME
 ngircd.conf \- configuration file of ngIRCd
 .SH SYNOPSIS
@@ -510,10 +510,12 @@ Name of the channel, including channel prefix ("#" or "&").
 Topic for this channel.
 .TP
 \fBModes\fR (string)
-Initial channel modes.
-.TP
-\fBKey\fR (string)
-Sets initial channel key (only relevant if channel mode "k" is set).
+Initial channel modes, as used in "MODE" commands. Modifying lists (ban list,
+invite list, exception list) is supported.
+.PP
+.RS
+This option can be specified multiple times, evaluated top to bottom.
+.RE
 .TP
 \fBKeyFile\fR (string)
 Path and file name of a "key file" containing individual channel keys for
@@ -557,10 +559,6 @@ The file is not reopened on each access, so you can modify and overwrite it
 without problems, but moving or deleting the file will have not effect until
 the daemon re-reads its configuration!
 .RE
-.TP
-\fBMaxUsers\fR (number)
-Set maximum user limit for this channel (only relevant if channel mode "l"
-is set).
 .SH HINTS
 It's wise to use "ngircd \-\-configtest" to validate the configuration file
 after changing it. See