Updated the README file.

README.md

@@ -1,4 +1,27 @@
-NxtAR-core
+NxtAR: A generic software architecture for Augmented Reality based mobile robot control.
-==========
+========================================================================================
 
-Modulo 2 de mi trabajo especial de grado.
+Core module
+-----------
+
+### Abstract ###
+
+NxtAR is a generic software architecture for the development of Augmented Reality games
+and applications centered around mobile robot control. This is a reference implementation
+with support for [LEGO Mindstorms NXT][1] mobile robots.
+
+### Module description ###
+
+The core module comprises all the operating system independent classes that implemente the
+base architecture and the different scenarios for the application. This implementation is
+designed and built around the [LibGDX][2] and the [Artemis Entity-System Framework][3] libraries.
+
+Currently there is one scenario titled *Bomb Game*.
+
+### Module installation and usage. ###
+
+The core module cannot be used directly. It is intended to be compiled with a LibGDX backend module.
+
+ [1]: http://www.lego.com/en-us/mindstorms/?domainredir=mindstorms.lego.com
+ [2]: http://libgdx.badlogicgames.com/
+ [3]: http://gamadu.com/artemis/