Adding a readme file

README.md

+Ball Tracking Code
+==================
+
+## Installation
+
+The first step to install this library is to install the pre-requisits. The easiest way to install these
+pre-requisits is to use your OS package manager, but make sure that the versions on your OS package manager
+are recent. Below I provide the links to the official mantainers of the required packages, in case you
+decide to install these packages from the source (For instance, if your OS package versions are too old).
+
+1. [OpenCV](http://opencv.org/)
+2. [Boost](http://www.boost.org/)
+3. [CMake](https://cmake.org/)
+4. [ZMQ](http://zeromq.org/)
+
+After the pre-requisites are installed, download the source of this library, compile and install. You need
+CMake to be able to compile and install this library.
+
+To install follow the standard procedure to compile packages with CMake, for instance, in Linux you would 
+type:
+
+```
+mkdir build
+cd build
+cmake ..
+make
+make test #optional (Tests that the compiled library passes the test cases)
+make install
+```
+
+To do `make install` you probably need root permisions. You can also install the library in your home
+folder if you do not have root permisions, by changing the CMake installation prefix.