Update README.md

Author: jmervine

README.md

@@ -6,7 +6,7 @@ Do you like building cool stuff?  Do APIs keep you up at night? We're looking fo
 MaxCDN REST Web Services Python Client
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-[![Build Status](https://travis-ci.org/maxcdn/python-maxcdn.png?branch=master)](https://travis-ci.org/maxcdn/python-maxcdn)
+[![Build Status](https://travis-ci.org/MaxCDN/python-maxcdn.svg?branch=master)](https://travis-ci.org/MaxCDN/python-maxcdn)
 
 Installation
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