'ShowSearchHit': Customize display of search hit.
$searchPage: The SpecialSearch instance.
$result: The SearchResult to show
-$terms: Search terms, for highlighting
+$terms: Search terms, for highlighting (unreliable as search engine dependent).
&$link: HTML of link to the matching page. May be modified.
&$redirect: HTML of redirect info. May be modified.
&$section: HTML of matching section. May be modified.