Heh, looks beautiful to me too on a terminal, but its HTML representation is still ugly.
Looking at [Markdown's syntax reference] I realized that ` is used for inline code, and we should use the "pre" tags to mark this entire block to be a code block.

I've created a patch with a fix for it and did some additional slightly changes on the README.md file.

[Markdown's syntax reference]: http://daringfireball.net/projects/markdown/syntax#precode
[patch]: http://pastebin.com/Liq74wWJ