Missing image

Thanks for providing this example.

The [`test/html.html` file] has a broken `<img>` element. The `images/css_gods_language.png` file isn't in the repository.

[`test/html.html` file]: https://github.com/thomasf/solarized-css/blob/2aaa046cf2dd4b891846d85e9b59f422f8528bb8/test/html.html#L30
