<li>A global title to your website; this title can later be mixed with a more specific
page-based title, or be replaced.</li>
<li>A list of references to CSS style sheets and pre-rendering javascript, like
- <code><link rel="stylesheet" href="http://cran.r-project.org/R.css"/></code>.
+ <code><link rel="stylesheet" href="http://cran.r-project.org/R.css"/></code>.
We will see later how to refer to local style sheets (under a/css).</li>
<li>Some javascript code which will be loaded by default after every page loads
(e.g. <a href="http://jquery.com/">jquery</a>).</li>