Add long description to setup.py

Author: Xing Han Lu

setup.py

@@ -1,3 +1,4 @@
+import io
 import json
 import os
 from setuptools import setup
@@ -17,9 +18,12 @@
     include_package_data=True,
     license=package['license'],
     description=package['description'] if 'description' in package else package_name,
+    long_description=io.open('README.md', encoding='utf-8').read(),
+    long_description_content_type='text/markdown',
     install_requires=[
         'dash',
         'dash-html-components',
         'dash_renderer',
-    ]
+    ],
+    url='https://dash.plot.ly/cytoscape'
 )