GitHub Pages + Jekyll + Bootstrap + CDN question

I’m new to GitHub Pages and Jekyll, and moving my blog https://sypalo.com to it.

I decided to use CDN for Twitter Bootstrap, so just copied example links from official website to the default.html template which is in the https://github.com/SergeySypalo/sergeysypalo/blob/master/_site/_layouts/default.html

But when my site is generated, Jekyll creates a local copy of css on the fly, so instead of pointing to the CDN, it creates a link to /assets/styles.css file, but styles are not applied.

Also, at the default.html page bottom, instead of 3 JavaScript files on CDN I got only one unknown to me pointing to CloudFlare.

What do I do wrong or what I have to do to bypass Jekyll processing links to the files located on CDN?

looks like you got it working?