Added landscape shield.

Author: rshipp

README.md

@@ -3,9 +3,11 @@ python-nut2
 
 [![Build Status](https://travis-ci.org/george2/python-nut2.svg?branch=master)][travis]
 [![Coverage Status](https://coveralls.io/repos/george2/python-nut2/badge.png)][coveralls]
+[![Code Health](https://landscape.io/github/george2/python-nut2/master/landscape.png)][landscape]
 
 [travis]: https://travis-ci.org/george2/python-nut2
 [coveralls]: https://coveralls.io/r/george2/python-nut2
+[landscape]: https://landscape.io/github/george2/python-nut2/master
 
 This is an API overhaul of [PyNUT](https://github.com/networkupstools/nut/tree/master/scripts/python),
 a Python library to allow communication with NUT ([Network UPS Tools](http://www.networkupstools.org/))