Capitalize Python for consistency

setup.py

@@ -52,7 +52,7 @@ setup(name='discord.py',
       version=version,
       packages=['discord', 'discord.ext.commands', 'discord.ext.tasks'],
       license='MIT',
-      description='A python wrapper for the Discord API',
+      description='A Python wrapper for the Discord API',
       long_description=readme,
       long_description_content_type="text/x-rst",
       include_package_data=True,