Merge pull request #120 from msabramo/patch-2

README.rst: Add PyPI badge

Author: methane

README.rst

@@ -8,6 +8,10 @@ MessagePack for Python
 
 .. image:: https://secure.travis-ci.org/msgpack/msgpack-python.png
    :target: https://travis-ci.org/#!/msgpack/msgpack-python
+   
+.. image:: https://pypip.in/version/msgpack-python/badge.svg
+    :target: https://pypi.python.org/pypi/msgpack-python/
+    :alt: Latest Version
 
 What's this
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