Typo in setup.py.

Author: harro

setup.py

@@ -34,7 +34,7 @@
       version=textfsm.__version__,
       description='Python module for parsing semi-structured text into python tables.',
       long_description=long_description,
-      long_description_content_type=text/markdown,
+      long_description_content_type='text/markdown',
       url='https://github.com/google/textfsm',
       license='Apache License, Version 2.0',
       classifiers=[