Remove invalid newlines in package description. Fixes venmo#67

setup.py

@@ -12,7 +12,8 @@
 setuptools.setup(
         name='business-rules',
         version=version,
-        description='{0}\n\n{1}'.format(description, history),
+        description=description,
+        long_description=history,
         author='Venmo',
         author_email='open-source@venmo.com',
         url='https://github.com/venmo/business-rules',