Add README

Author: meatballs

README.rst

@@ -0,0 +1,59 @@
+TourExec
+========
+
+This repository contains the software associated with 
+`Robert Axelrod <http://www-personal.umich.edu/%7Eaxe/>`_'s book `The Complexity of
+Cooperation: Agent-Based Models of Competition and Collaboration
+<http://press.princeton.edu/titles/6144.html>`_ (Princeton University Press).
+
+The code was originally published by the 
+`University of Michigan Center for the Study of Complex Systems <http://lsa.umich.edu/cscs/>`_
+and is now available from
+`Robert Axelrod's personal website <http://www-personal.umich.edu/~axe/research/Software/CC/CC2.html>`_.
+
+The original code has been modified in this repository to ensure that it will
+compile successfully using a modern Fortran compiler.
+
+Prerequisites
+-------------
+
+You will need the `make <https://www.gnu.org/software/make/>`_ and
+`gfortran <https://gcc.gnu.org/fortran/>`_ tools installed on your system
+and available from your command line.
+
+To check if you already have them installed:
+
+	$ make -v
+
+Should return something similar to:
+
+	$ GNU Make 3.81
+	$ Copyright (C) 2006  Free Software Foundation, Inc.
+	$ This is free software; see the source for copying conditions.
+	$ There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
+	$ PARTICULAR PURPOSE.
+
+and
+
+	$ gfortran -v
+
+should return something similar to:
+
+	$ Using built-in specs.
+	$ Thread model: posix
+	$ gcc version 7.1.0
+
+Installation
+------------
+
+Clone the repository and compile the Fortran code:
+
+	$ git clone https://github.com/Axelrod-Python/TourExec.git
+	$ cd TourExec
+	$ make
+
+You should now have a `bin` directory containing the the executable file,
+`tourexec`, which you can run:
+
+	$ cd ../bin
+	$ ./tourexec