Fixed 'ns run' fix in tutorial

www/tutorial/tutorial.html

@@ -97,14 +97,6 @@ from node A to B.
 	$ns duplex-link $NodeB $NodeC 100Mb .1ms DropTail
 	$ns duplex-link $NodeB $NodeD 100Mb .1ms DropTail</code></pre>
 
-<p>
-Lastly, all NS files end with an epilog that instructs the simulator
-to start. This command is ignored by the Testbed, but should be
-included in all NS files for compability with the simulator.
-
-	<code><pre>
-	$ns run					</code></pre>
-
 <p>
 In addition to the standard NS syntax above, a number of <a
 href="nscommands.html">extensions</a> have been added that allow you
@@ -130,7 +122,9 @@ going to node C:
 	tb-set-ip-interface $NodeB $NodeC 192.168.42.42	</code></pre>
 
 <p>
-Then make sure to add the NS run command at the end:
+Lastly, all NS files end with an epilog that instructs the simulator
+to start.
+
 	<code><pre>
 	# Go!
 	$ns run					</code></pre>