Added man page to dwmblocks

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+.TH dwmblocks 1
+.SH NAME
+dwmblocks \- Modular status bar for dwm
+.SH SYNOPSIS
+.B dwmblocks
+.RB [OPTIONS]
+.SH DESCRIPTION
+dwmblocks is a generator for the status bar of
+.BR dwm (1).
+.P
+The status bar is made from concatenating "blocks" together.  Each
+block is a shell script whose text output is used as part of the
+status bar.  Blocks may be added or removed by editing the config.h
+file.
+.P
+The block data structure contains the script name, an update interval
+and an update signal.  The update interval defines the period (in
+seconds) for each call to the corresponding script, replacing the
+output.  The update signal defines a signal by which that block may be
+forcibly called to replace output.
+.P
+The concatenated output of each block is then fed to the
+.BR xsetroot (1)
+command which sets the bar for dwm.
+.SH OPTIONS
+.TP
+.B \-p
+prints string for bar instead of setting X root.
+.TP
+.B \-d
+sets delimiter.
+.SH CUSTOMIZATION
+dwmblocks is customised by creating a custom config.h and
+(re)compiling the source code. This keeps it fast, secure and simple.
+.P
+While some blocks may only require periodic calls (using the update
+interval), others may require some external action to require a call.
+A classical example is a volume block.  Volume may be altered based on
+an external program.  Though simply setting a small update interval
+may work adequately, a better solution is to force dwmblocks to update
+that specific block when a change in volume is requested by the user.
+This is done through sending a signal to the dwmblocks process.
+.P
+Say the update signal for the volume block is 10.  To force an update,
+one may perform:
+.sp
+.RS 4
+.nf
+kill -44 $(pidof) dwmblocks
+.fi
+.RE
+.P
+using
+.BR kill (1)
+and
+.BR pidof (1).
+For a block with an update signal x, the kill command uses -<x+10>.
+
+.SH SEE ALSO
+.BR dmenu (1),
+.BR st (1),
+.SH BUGS
+Send all bug reports with a patch to aryadev@aryadevchavali.com