Update README.rst

Fix reStructuredText formatting issues.

Excuse the poor branch name. I edited this all on GitHub. Even though I answered your [question][] I thought I'd help out and send a PR anyway.

[question]: http://stackoverflow.com/questions/16367770/my-rst-readme-is-not-formatted-on-pypi-python-org/16443910#16443910

You can then update this (without doing a new release) with:

```
python setup.py register
```

It will update your README for you. :)