fossil commit -m "added markitup an jquery to the project"
    fossil ui
</pre>
select admin/headers add after the </link> put
<pre class="verbatim">
    &lt;link rel="stylesheet" type="text/css" href="/doc/tip/javascript/markitup/skins/markitup/style.css" /&gt;
    &lt;link rel="stylesheet" type="text/css" href="/doc/tip/javascript/markitup/sets/default/style.css" /&gt;

    &lt;script type="text/javascript" src="/doc/tip/javascript/jquery.js"&gt;
    &lt;/script&gt;
    &lt;script type="text/javascript" src="/doc/tip/javascript/markitup/jquery.markitup.js"&gt;
    &lt;/script&gt;
</pre>

and save