Add manual selection of rsync options

man/simple_backup.1

@@ -59,6 +59,25 @@ Default behavior is to remove old backups after successfully completing the back
 .TP
 .B \-\-no\-syslog
 Don't use systemd journal for logging
+.TP
+.B \-\-rsync\-options OPTIONS [OPTION...]
+By default, the following rsync options are used:
+.RS
+.PP
+\-a \-r \-c \-v \-h \-H \-X
+.PP
+Using \-\-rsync\-options it is possible to manually select which options to use. Supported values are the following:
+.PP
+\-a, \-l, \-p, \-t, \-g, \-o, \-c, \-h, \-D, \-H, \-X
+.PP
+Options \-r and \-v are used in any case. Not that options must be specified without dash (\-), for example:
+.PP
+.EX
+simple_backup \-\-rsync\-options a l p
+.EE
+.TP
+Check rsync(1) for details about the options.
+.RE
 .SH CONFIGURATION
 An example configuration file is provided at \(aq/etc/simple_backup/simple_backup.conf\(aq. Copy it to the default location
 ($HOME/.config/simple_backup) and edit it as needed.