[Rakefile] Broke "tangle" stuff into distinct file
[gh-pages] Created basis for static site

* Can clone gh-pages (branch) to ./gh-pages (directory)
* rake build-gh-pages creates static site at ./gh-pages
* html5boilerplate used (with bootstrap)
* prismjs used
Setup static site (page) generation

* static-site:
  [gh-pages] Created basis for static site
  [Rakefile] Broke "tangle" stuff into distinct file
[readme] Tweaked title