Note to the author: Please add something informative to this README before releasing your software, as a little documentation goes a long way. Both README.rst (this file) and NEWS.txt (release notes) will be included in your package metadata which gets displayed in the PyPI page for your project.
You can take a look at the README.txt of other projects, such as repoze.bfg (http://bfg.repoze.org/trac/browser/trunk/README.txt) for some ideas.