Add downloads badge

Author: jacebrowning

README.md

@@ -4,8 +4,9 @@ A `pytest` plugin based on [garybernhardt/expecter](https://github.com/garybernh
 
 [![Build Status](https://img.shields.io/travis/jacebrowning/pytest-expecter/develop.svg?label=unix)](https://travis-ci.org/jacebrowning/pytest-expecter)
 [![Coverage Status](https://img.shields.io/coveralls/jacebrowning/pytest-expecter/develop.svg)](https://coveralls.io/r/jacebrowning/pytest-expecter)
-[![PyPI Version](https://img.shields.io/pypi/v/pytest-expecter.svg)](https://pypi.org/project/pytest-expecter)
 [![PyPI License](https://img.shields.io/pypi/l/pytest-expecter.svg)](https://pypi.org/project/pytest-expecter)
+[![PyPI Version](https://img.shields.io/pypi/v/pytest-expecter.svg)](https://pypi.org/project/pytest-expecter)
+[![PyPI Downloads](https://img.shields.io/pypi/dm/pytest-expecter.svg?color=orange)](https://pypistats.org/packages/pytest-expecter)
 
 # Quick Start