Fix link to RiveScript tag

www/.layout.gohtml

@@ -123,7 +123,7 @@
 
 				<h2>Software</h2>
 				<ul class="list-unstyled">
-					<li>&#0187; <a href="/tagged/rivescript">RiveScript</a></li>
+					<li>&#0187; <a href="/tagged/RiveScript">RiveScript</a></li>
 					<li>&#0187; <a href="/errorgen">Error Message Generator</a></li>
 					<li>&#0187; <a href="/tkcalc">Perl/Tk Calculator</a></li>
 					<li>&#0187; <a href="/pccc">CyanChat Client</a></li>