Add long_description_content_type to setup.py.
This avoids warning from `twine check dist/*` when creating releases.
@@ -56,6 +56,7 @@ setup(
license = 'Apache License 2.0',
description = DESCRIPTION,
long_description = LONG_DESCRIPTION,
+ long_description_content_type = 'text/x-rst',
keywords = KEYWORDS,
platforms = 'any',
classifiers = CLASSIFIERS,
