Update README.md

Author: CamDavidsonPilon

README.md

@@ -101,6 +101,19 @@ The contents are updated synchronously as commits are made to the book. You can
 in these PDFs is not guarunteed to be the most recent content as the PDFs are only compiled periodically. Similarly, the book will not be
 interactive.
 
+
+Installation and configuration
+------
+If you would like to run the IPython notebooks locally, (option 1. above), you'll need to install the following:
+-  IPython 0.13 is a requirement to view the ipynb files. It can be downloaded [here](http://ipython.org/ipython-doc/dev/install/index.html)
+-  For Linux users, you should not have a problem installing Numpy, Scipy and PyMC. For Windows users, check out [pre-compiled versions](http://www.lfd.uci.edu/~gohlke/pythonlibs/) if you have difficulty. 
+-  In the styles/ directory are a number of files that are customized for the notebook. 
+These are not only designed for the book, but they offer many improvements over the 
+default settings of matplotlib and the IPython notebook. The in notebook style has not been finalized yet.
+-  Currently the formatting of the style is not set, so try to follow what has been used so far, but inconsistencies are fine. 
+
+
+
 Development
 ------
 
@@ -109,6 +122,24 @@ Authors submit content or revisions using the GitHub interface. After a major re
 PDF, and increment the version of *Probabilistic Programming and Bayesian Methods for Hackers*. 
 
 
+
+### How to contribute
+
+####What to contribute?
+
+-  The current chapter list is not finalized. If you see something that is missing (MCMC, MAP, Bayesian networks, good prior choices, Potential classes etc.),
+feel free to start there. 
+-  Cleaning up Python code and making code more PyMC-esque.
+-  Giving better explainations
+-  Contributing to the IPython notebook styles.
+
+
+####Commiting
+
+-  All commits are welcome, even if they are minor ;)
+-  If you are unfamiliar with Github, you can email me contributions to the email below.
+
+
 Contributions and Thanks
 -----
 
@@ -124,6 +155,7 @@ Thanks to all our contributing authors, including (in chronological order):
 -  [y-p](https://github.com/y-p)
 -  [Ethan Brown](http://www.etano.net/)
 -  [Jonathan Whitmore](http://jonathanwhitmore.com/)
+-  [Mattia Rigotti](https://github.com/matrig)
 
 
 We would like to thank the Python community for building an amazing architecture. We would like to thank the 
@@ -136,31 +168,6 @@ community for developing the Notebook interface. All IPython notebook files are
 
 
 
-### How to contribute
-
-####What to contribute?
-
--  The current chapter list is not finalized. If you see something that is missing (MCMC, MAP, Bayesian networks, good prior choices, Potential classes etc.),
-feel free to start there. 
--  Cleaning up Python code and making code more PyMC-esque.
--  Giving better explainations
--  Contributing to the IPython notebook styles.
-
-
-####Installation and configuration
-
--  IPython 0.13 is a requirement to view the ipynb files. It can be downloaded [here](http://ipython.org/ipython-doc/dev/install/index.html)
--  For Linux users, you should not have a problem installing Numpy, Scipy and PyMC. For Windows users, check out [pre-compiled versions](http://www.lfd.uci.edu/~gohlke/pythonlibs/) if you have difficulty. 
--  In the styles/ directory are a number of files that are customized for the notebook. 
-These are not only designed for the book, but they offer many improvements over the 
-default settings of matplotlib and the IPython notebook. The in notebook style has not been finalized yet.
--  Currently the formatting of the style is not set, so try to follow what has been used so far, but inconsistencies are fine. 
-
-####Commiting
-
--  All commits are welcome, even if they are minor ;)
--  If you are unfamiliar with Github, you can email me contributions to the email below.
-
 ####Contact
 Contact the main author, Cam Davidson-Pilon at [email protected] or [@cmrndp](https://twitter.com/cmrn_dp)