cayek.github.io ressources http://rmarkdown.rstudio.com/html_document_format.html http://news.bootswatch.com/post/81584163618/5-simple-design-tips-to-improve-your-bootstrap https://github.com/yihui/knitr-jekyll https://github.com/rstudio/rmarkdown/tree/gh-pages https://github.com/barryclark/jekyll-now
