setup.cfg: Fix type of long_description and URL format

Author: martinpitt

setup.cfg

@@ -3,10 +3,11 @@ name = python-dbusmock
 version = attr: dbusmock.__version__
 description = Mock D-Bus objects
 long_description = file: README.md
+long_description_content_type = text/markdown
 author = Martin Pitt
 author_email = [email protected]
-url = "https://github.com/martinpitt/python-dbusmock"
-download_url = "https://pypi.python.org/pypi/python-dbusmock"
+url = https://github.com/martinpitt/python-dbusmock
+download_url = https://pypi.python.org/pypi/python-dbusmock/
 license = LGPL 3+
 
 classifiers =