Updated setup.py

Author: mongkok

setup.py

@@ -34,17 +34,16 @@ def get_version(package):
         'graphene-django==3.0.0b1',
     ],
     classifiers=[
-        'Development Status :: 4 - Beta',
+        'Development Status :: 3 - Alpha',
         'Environment :: Web Environment',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        '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',
         'Framework :: Django',
         'Framework :: Django :: 2.0',