Update setup.py to include README and latest Python versions

Makefile

@@ -0,0 +1,13 @@
+#!/usr/bin/make -f
+
+dist:
+	python3 setup.py sdist bdist_wheel
+
+pushreleasetest:
+	python3 -m twine upload --repository testpypi dist/*
+
+pushrelease:
+	python3 -m twine upload dist/*
+
+clean:
+	$(RM) -r dist

setup.py

@@ -10,7 +10,8 @@
 	name='httoop',
 	version=version,
 	description='object oriented HTTP protocol library',
-	long_description='',
+	long_description=open('README.md').read(),
+	long_description_content_type='text/markdown',
 	author='SpaceOne',
 	author_email='space@wechall.net',
 	url='https://github.com/spaceone/httoop',
@@ -29,6 +30,8 @@
 		'Programming Language :: Python :: 3.5',
 		'Programming Language :: Python :: 3.6',
 		'Programming Language :: Python :: 3.7',
+		'Programming Language :: Python :: 3.8',
+		'Programming Language :: Python :: 3.9',
 		'Topic :: Internet :: WWW/HTTP :: HTTP Servers',
 		'Topic :: Internet :: WWW/HTTP :: WSGI :: Application',
 		'Topic :: Internet :: WWW/HTTP :: WSGI :: Middleware',