Update README.md

Guillaume Badi · Guillaume Badi · commit 3e45bd4d092c · 2015-10-05T17:27:14.000+02:00
diff --git a/README.md b/README.md
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 [![Build Status](https://travis-ci.org/mailjet/mailjet-apiv3-python.svg?branch=master)](https://travis-ci.org/mailjet/mailjet-apiv3-python)
 
-Compatibility: python2.*
-
 ### API documentation
 
 Every code examples can be find on the Mailjet Documentation: http://dev.mailjet.com/guides/?python
