add download link

Author: pawl

setup.py

@@ -11,12 +11,13 @@
 setup(
     name='Chinese RFID Access Control Library',
     version='0.0.1',
-    description='A library for interfacing with the cheapest and most common Chinese RFID Access Control System.',
+    description='A library for interfacing with one of the most common RFID Access Control System sold in China.',
     long_description=readme,
     author='Paul Brown',
     author_email='paul90brown@gmail.com',
     url='https://github.com/pawl/Chinese-RFID-Access-Control-Library',
     license=license,
+	download_url = ['https://github.com/pawl/Chinese-RFID-Access-Control-Library/tarball/master#egg=package-0.0.1'],
 	keywords = ['rfid', 'access control'],
     py_modules = ['rfid']
 )