✏️ Fix the classifier for the Apache license.

Author: coderanger

setup.cfg

@@ -5,7 +5,7 @@ description = A wrapper for running your Python web application using Twisted in
 long_description = file: README.md
 license = Apache License 2.0
 classifiers =
-    License :: OSI Approved :: Apache License
+    License :: OSI Approved :: Apache Software License
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6