It appears to be deliberately not implemented. As 'index.php' is missing code that utilises the 'format_site' class in '/course/format/lib.php' and in any event the method that would be called by '/course/format/renderer.php' upon that class is implemented like so:
function get_section_name($section) {
return get_string('site');
}
And thus, there is no intent for it to work. Only the section summary in 'index.php':
echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
Yours,
Dr Watson
P.S. Try http://www.buzzfeed.com/ailbhemalone/what-sherlock-character-are-you