change setup.py

setup.py

@@ -11,7 +11,7 @@
         version=VERSION,
         description='buildbot plugin for using matrix for notifications',
         author='HayWo',
-        author_email='haywo@nct08.de',
+        author_email='opensource@nct08.de',
         url='https://github.com/HayWo/buildbot-matrix',
         long_description=long_description,
         long_description_content_type="text/markdown",
@@ -26,12 +26,14 @@
         },
         classifiers=[
             "Development Status :: 5 - Production/Stable",
+            "Programming Language :: Python :: 3",
             "Environment :: Plugins",
             "Intended Audience :: Developers",
             "License :: OSI Approved :: MIT License",
             "Operating System :: Microsoft :: Windows",
             "Operating System :: MacOS",
             "Operating System :: POSIX :: Linux",
             "Topic :: Software Development :: Build Tools"
-        ]
+        ],
+        python_requires='>=3.6',
     )