sort posts reversed (newest last)

_includes/navigation.html

@@ -2,7 +2,7 @@
   <!-- Gösta Hellner, Ostraka aus dem Kerameikos, Deutsches Archäologisches Institut Athen, 1963 -->
   <ul>
     <li class="p-intro"><a href="#intro">{{intro-page.title}}</a></li>
-    {% for node in site.posts %}
+    {% for node in site.posts reversed %}
     {% capture id %}{{ node.id | remove:'/' | downcase }}{% endcapture %}
     <li class="p-{{id}}"><a href="#{{id}}">{{node.title}}</a></li>
     {% endfor %}