fix(setup): correct invalid license classifier

Author: heitorlessa

python/setup.py

@@ -23,7 +23,7 @@
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
-        "License :: OSI Approved :: MIT-0",
+        "License :: OSI Approved :: MIT License",
         "Natural Language :: English",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",