ioping: add links to related tools and projects

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>

ioping.1

@@ -188,7 +188,16 @@ Measure disk seek rate.
 .B ioping -RL /dev/sda
 Measure disk sequential speed.
 .SH SEE ALSO
-Homepage
+.BR iostat (1),
+.BR dd (1),
+.BR fio (1),
+.BR dbench (1),
+.BR fsstress,
+.BR xfstests,
+.BR hdparm (8),
+.BR badblocks (8),
+.BR
+.SH HOMEPAGE
 .UR http://code.google.com/p/ioping/
 .UE .
 .SH AUTHORS