Refs #1028. Now iterating over tags

pelican/themes/simple/templates/article.html

@@ -7,6 +7,11 @@
   {% for description in article.description %}
     <meta name="description" contents="{{description}}">
   {% endfor %}
+
+  {% for tag in article.tags %}
+    <meta name="tags" contents="{{tag}}"
+  {% endfor %}
+
 {% endblock %}
 
 {% block content %}