Update README

Author: mnovozhylov

README.md

@@ -1,7 +1,7 @@
 Python bindings for Upwork API
 ============
 
-[![License](http://img.shields.io/packagist/l/upwork/php-upwork.svg)](http://www.apache.org/licenses/LICENSE-2.0.html)
+[![License](http://img.shields.io/packagist/l/upwork/python-upwork.svg)](http://www.apache.org/licenses/LICENSE-2.0.html)
 [![PyPI Version](https://badge.fury.io/py/python-upwork.svg)](http://badge.fury.io/py/python-upwork)
 [![GitHub release](https://img.shields.io/github/release/upwork/python-upwork.svg)](https://github.com/upwork/python-upwork/releases)
 [![Build Status](https://travis-ci.org/upwork/python-upwork.svg)](https://travis-ci.org/upwork/python-upwork)