[fix] link

searx/templates/about.html

@@ -4,7 +4,7 @@
 <div class="row">
     <h1>About <a href="/">searx</a></h1>
 
-    <p>Searx is a <a href="https://en.wikipedia.org/wiki/Metasearch_engine">metasearch engine</a>, aggregating the results of other <a href="/engines">search engines</a> while not storing information about its users.
+    <p>Searx is a <a href="https://en.wikipedia.org/wiki/Metasearch_engine">metasearch engine</a>, aggregating the results of other <a href="/preferences">search engines</a> while not storing information about its users.
     </p>
     <h2>Why use Searx?</h2>
     <ul>