Invalid rst in README prevents PyPI from rendering as HTML
You need to escape asterisks (i.e. *nix) or just write Unix in README, otherwise the rst parser in docutils interprets it as the start of emphasis markup which is never closed. That’s why PyPI diplays the raw rst instead of cool HTML.
You can use rst2html to check before committing, or python setup.py check (distutils command in Python 2.7 and 3.x).