Merge pull request #1639 from pymc-devs/adding_book

DOCS: Adding Osvaldo Martin book

Author: twiecki

README.rst

@@ -47,7 +47,7 @@ Getting started
    Analysis" by John
    Kruschke <https://github.com/aloctavodia/Doing_bayesian_data_analysis>`__
 -  `Coyle P. (2016) Probabilistic programming and PyMC3. European Scientific Python Conference 2015 (Cambridge, UK) <http://adsabs.harvard.edu/abs/2016arXiv160700379C>`__
-
+-  `Bayesian Analysis with Python by Osvaldo Martin <https://www.packtpub.com/big-data-and-business-intelligence/bayesian-analysis-python>`__
 
 Installation
 ------------