Haml indentation fix & jQuery HTTPS support

jQuery CDN doesn't serve over HTTPS:
http://bugs.jquery.com/ticket/10142

2 other CSS doesn't serve over HTTPS:

https://twitter.github.com/bootstrap/assets/js/google-code-prettify/prettify.css
https://twitter.github.com/bootstrap/assets/css/docs.css

as https://twitter.github.com 404.

I couldn't find a CDN that hosts these files and since they're mostly cosmetic functionally so let's discuss how to fix this.