fix readme for pypi publishing

[John Dickinson]

The info in the README isn't being published to pypi

From IRC:

10:10 fungi: the readme needs to be included in the metadata at upload
10:10 fungi: i'm familiar with how we configure that in setup.cfg, there's probably some analog in straight setup.py structures
10:11 fungi: in setup.cfg we set, e.g., metadata.description-file = README.rst
10:14 fungi: looks like that's semi-automated by pbr (sucking a file's contents into the description parameter), and the pypa example shows implementing it in setup.py like this: https://github.com/pypa/sampleproject/blob/master/setup.py#L16
10:14 fungi: tdasilva: notmyname: ^
10:15 fungi: basically extract the content from the readme file and then pass it as a string in the long_description parameter to setup()

[Thiago da Silva (thiagodasilva)]

maybe what we might "need to"/can do is rename the README.md to README.rst

[Tim Burke (1-tim-z)]

I think we've probably done what we can for this -- at any rate, I don't see any link to an issue tracker at all any more on https://pypi.org/project/pyeclib/.

[Tim Burke (1-tim-z)]

Bah -- I'd meant that to go on https://bugs.launchpad.net/pyeclib/+bug/1641074. This *also* seems resolved, however -- fixed as of 1.6.0, likely by https://opendev.org/openstack/pyeclib/commit/0e3afd3b946d8bf0fa8353c1ac18fed391cb20dc