Added maintainer metadata to package

Author: IanLee1521

setup.py

@@ -26,6 +26,8 @@ def get_long_description():
     keywords='pycodestyle, pep8, PEP 8, PEP-8, PEP8',
     author='Johann C. Rocholl',
     author_email='[email protected]',
+    maintainer='Ian Lee',
+    maintainer_email='[email protected]',
     url='https://pycodestyle.readthedocs.io/',
     license='Expat license',
     py_modules=['pycodestyle'],