edit iptables

iptables/modules/ROOT/pages/index.adoc

@@ -262,7 +262,7 @@ Target extensions can be either **terminating** (as built-in targets) or **non-t
 
 === Traversing Chains 
 
-A network packet received on any interface traverses the traffic control chains of tables in the order shown in the http://docs.swarmlab.io/lab/sec/tables_traverse.jpg[this chart]
+A network packet received on any interface traverses the traffic control chains of tables in the order shown in the *chart* above.
 
 - The first routing decision involves deciding if the final destination of the packet is the local machine (in which case the packet traverses through the **INPUT chains**