Added section for the demo in README.

README.md

@@ -9,6 +9,7 @@ This repository provides a library with interfaces by which you can access the n
  - [Network Model](#network-model)
  - [Roadmap](#roadmap)
  - [API Documentation](#api-documentation)
+ - [Example Code](#example-code)
  - [Clients](#clients)
  - [Compiling](#compiling)
  - [Contributing](#contributing)
@@ -44,6 +45,10 @@ NeoComm uses [Doxygen](http://www.stack.nl/~dimitri/doxygen/) to generate its do
 
 Public documentation will be published with every major release.
 
+Example Code
+------------
+An example program is available in the [demo directory](demo) which contains a basic usage of NeoComm.
+
 Clients
 -------
 _There are currently no clients available._