Fix pypi push by specifying a long_description (#1051)

* Fix pypi push by specifying a long_description

* Verison bump to rerelease

setup.py

@@ -1,13 +1,15 @@
 from setuptools import find_packages
 from setuptools import setup
 
-__version__ = '0.68.0'
+__version__ = '0.68.1'
 
 
 setup(
     name='cartography',
     version=__version__,
     description='Explore assets and their relationships across your technical infrastructure.',
+    long_description='file: README.md',
+    long_description_content_type='text/markdown',
     url='https://www.github.com/lyft/cartography',
     maintainer='Lyft',
     maintainer_email='[email protected]',
@@ -75,7 +77,6 @@
         'Natural Language :: English',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.8',
         'Topic :: Security',
         'Topic :: Software Development :: Libraries',