proper prefix in templates: wikiqs -> qswiki

template/quitesimple/show_category

@@ -1,6 +1,6 @@
-{wikiqs:include:general_header}
+{qswiki:include:general_header}
 <main id="content">
-<h2>Category: {wikiqs:var:categoryname}</h2>
-{wikiqs:var:pagelist}
+<h2>Category: {qswiki:var:categoryname}</h2>
+{qswiki:var:pagelist}
 </main>
-{wikiqs:include:general_footer}
+{qswiki:include:general_footer}