Update README.md

README.md

@@ -2,7 +2,7 @@
 
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 [![Build Status](https://travis-ci.org/tiborsimon/projects.svg?branch=master)](https://travis-ci.org/tiborsimon/projects)
-[![Coverage Status](https://coveralls.io/repos/github/tiborsimon/projects/badge.svg?branch=master)](https://coveralls.io/github/tiborsimon/projects?branch=master)
+[![Coveralls](https://img.shields.io/coveralls/tiborsimon/projects.svg?maxAge=2592000)](https://coveralls.io/github/tiborsimon/projects)
 [![PyPI](https://img.shields.io/pypi/v/projects.svg?maxAge=2592000)](https://pypi.python.org/pypi?name=projects&version=0.1.1&:action=display)
 [![license](https://img.shields.io/github/license/tiborsimon/projects.svg?maxAge=2592000)](https://github.com/tiborsimon/projects#license)
 [![PyPI](https://img.shields.io/pypi/dm/projects.svg?maxAge=2592000)](https://pypi.python.org/pypi?name=projects&version=0.1.1&:action=display)