created language switcher

template-index.html

@@ -12,9 +12,8 @@
         <h1>{{introduction-heading}}</h1>
         <p>{{introduction-subheading}}</p>
     </div>
-        <nav>
-        <a href="/en/index.html">English</a>
-        <a href="/de/index.html">Deutsch</a>
+    <nav>
+        {{language-switcher}}
     </nav>
 </body>