Demo

Just wanted to let you know that I've built a 5-container demo of your tool.  It includes an instance of Wireshark (with a web interface) and a PDF showing how to set up and use the demo.  The code is at:

https://github.com/packetgeek/icmptunnel-docker-demo

Go ahead and close (or delete) this issue.  Just wanted to let y'all know about it.