Merge petertodd#172: Enable README markdown rendering on PyPI

45be64a Enable README markdown rendering on PyPI (Daniel Himmelstein)

Pull request description:

  Set `long_description_content_type='text/markdown'`.

  See also opentimestamps/python-opentimestamps#30

Tree-SHA512: e79a36582f0bf6ef3f96165cb0033d727b5ca47ae911cb0d12b556d6f65282d3d643dfb77f9494cc3aaef694d8d89c0291c55b7a6f89861a8ca008dae749b855

Author: petertodd

setup.py

@@ -15,6 +15,7 @@
       version=__version__,
       description='The Swiss Army Knife of the Bitcoin protocol.',
       long_description=README,
+      long_description_content_type='text/markdown',
       classifiers=[
           "Programming Language :: Python",
           "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",