update man page #74

Changes

@@ -1,5 +1,6 @@
 N.N.N  - DD-MMM-2015
 ====================
+- Added a complete graph for Linux Traffic Control with the 'tc' command. [#74]
 - Added the option 'cmd' in 'libvirt.pm' in order to be able to execute a
   custom command like 'virsh -r -c qemu:///session'.
   	(suggested by Pavel Bauer, pbauer AT algotech.cz)

man/man5/monitorix.conf.5

@@ -1078,9 +1078,42 @@ The maximum number of entries allowed is 10.
 This is where the network interface that acts as the gateway for this server is defined. This is mainly used if you plan to monitor network traffic usage of your devices/networks using the \fBtraffacct\fP graph below.
 .RE
 .SS Netstat statistics (netstat.rrd)
-This graph shows the state of the all network connections IPv4 and IPv6.
+This graph shows the state of the all IPv4 and IPv6 network connections.
 .P
 Only the limit and rigid values can be set here.
+.SS Traffic Control statistics (tc.rrd)
+This graph is able to monitor an unlimited number of network interfaces managed by the \fItc\fP command.
+.P
+.BI list
+.RS
+This is a comma-separated list of network interfaces that you may want to monitor. An example would be:
+.P
+.RS
+list = eth0, eth1
+.br
+.RE
+.RE
+.P
+.BI desc
+.RS
+This is the option where you define the queue disciplines you want to monitor for each network interface specified in \fBlist\fP.
+.P
+An example would be:
+.P
+.RS
+<desc>
+.br
+	eth0 = cbq 1, sfq 10, sfq 20, sfq 30, ingress ffff
+.br
+	eth1 = htb 1, pfifo 20, pfifo 21, pfifo 22
+.br
+</desc>
+.RE
+.P
+The maximum number of qdiscs allowed is 9.
+.RE
+.P
+
 .SS Libvirt statistics (libvirt.rrd)
 This graph is able to monitor an unlimited number of virtual machines managed by Libvirt.
 .P