Update README.md

Author: mbucchi

README.md

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-# pybalu
+pybalu
+============
+
+[![Build Status](https://travis-ci.com/mbucchi/pybalu.svg?branch=master)](https://travis-ci.com/mbucchi/pybalu)
+[![Build status](https://ci.appveyor.com/api/projects/status/f010n1dwwyf5f2rk/branch/master?svg=true)](https://ci.appveyor.com/project/mbucchi/pybalu/branch/master)
+
 
 Python implementation for Balu, a computer vision, pattern recognition and image processing library. Originally implemented in matlab by Domingo Mery.