Update man page with new features

mdoc alternative @ https://ghostbin.com/paste/oj2b4/raw

spt.1

@@ -4,19 +4,22 @@ spt \- simple pomodoro timer
 .SH SYNOPSIS
 .B spt
 .RB [ \-e
-.IR notifycmd ]
-.RB [ \-n
 .IR notifyext ]
+.RB [ \-n
+.IR notifycmd ]
 .RB [ \-v ]
 .SH DESCRIPTION
 .B spt
 is a simple timer that uses pomodoro technique with desktop notification to
 double your efficiency.
-
-To check the remaining time, send USR1 signal to spt by:
-
+.B spt
+receives 2 signals:
 .RS
-.B pkill -USR1 spt
+.B SIGUSR1()
+\- show remaining time
+.br
+.B SIGUSR2()
+\- play/pause the timer
 .RE
 .SH OPTIONS
 .TP
@@ -26,35 +29,24 @@ Execute
 when timer starts ticking.
 .TP
 .BI \-n " notifycmd"
-If
-.IR empty ,
-do nothing. If
-.IR libnotify ,
-use the default notification. If neither, it will use the command specified.
+Execute
+.I notifycmd
+if not compiled with
+.IR "-DNOTIFY".
 .TP
 .BI \-v
 Prints version information to stderr, then exits.
 .SH TIMER
-4 pomodoro timer
-.RB ( "25 min." )
-with subsequent rests in between
-.RB ( "5 min." )
-and
-followed by a long rest
-.RB ( "15 min." )
-.B in an infinite loop
+4 pomodoro timer (
+.B 25 min.
+) with subsequent rests in between (
+.B 5 min.
+) and followed by a long rest (
+.B 15 min.
+) in an infinite loop.
 .SH EXAMPLES
 Use system notify_send and play a music without libnotify:
-
-.RS
-.B spt -e 'aplay alarm.wav' -n 'notify-send'
-.RE
-.SH AUTHOR
-The author is not that important. A message from the author:
-.TP
-.I "Good luck and have a nice day!"
-.SH LICENSE
-See the LICENSE file for the terms of redistribution.
-.SH BUGS
-Bugs? You must be kidding; there is no bugs in this software. But if we
-happened to be wrong, please report the bugs!
+.IP
+spt -e 'aplay alarm.wav' -n 'notify-send'
+.SH AUTHORS
+Ivan Tham <pickfire@riseup.net>