Update README.md

Author: tewarid

README.md

@@ -1,6 +1,6 @@
 # node-tcp-proxy [![Build Status](https://semaphoreci.com/api/v1/tewarid/node-tcp-proxy/branches/master/badge.svg)](https://semaphoreci.com/tewarid/node-tcp-proxy) [![Codacy Badge](https://app.codacy.com/project/badge/Grade/a882a604851b494caf65b3913592da4c)](https://www.codacy.com/gh/tewarid/node-tcp-proxy/dashboard?utm_source=github.com&utm_medium=referral&utm_content=tewarid/node-tcp-proxy&utm_campaign=Badge_Grade) [![Maintainability](https://api.codeclimate.com/v1/badges/119038e281e93a7d5d05/maintainability)](https://codeclimate.com/github/tewarid/node-tcp-proxy/maintainability)
 
-A simple TCP proxy that may be used to access a service on another network. An extensible replacement for socat when used thus
+A [classical](https://tools.ietf.org/html/rfc1919) TCP proxy that may be used to access a service on another network. An extensible replacement for socat when used thus
 
 ```bash
 socat TCP-LISTEN:port,fork TCP:host:port