update setup.py

Author: telnet23

setup.py

@@ -3,14 +3,14 @@
 from setuptools import setup
 from os.path import dirname, abspath, join
 
-
 long_description_path = join(dirname(abspath(__file__)), 'README.md')
 long_description = open(long_description_path, encoding='utf-8').read()
 
 setup(
     name='pretty-csv-diff',
     long_description=long_description,
     long_description_content_type='text/markdown',
+    url='https://github.com/telnet23/pretty-csv-diff',
     license='Apache License 2.0',
     use_scm_version=True,
     setup_requires=[