improves paginator and tags/categories/archives listing layout
diff --git a/templates/article.html b/templates/article.html
index 6abe2e6..c1bea9b 100644
--- a/templates/article.html
+++ b/templates/article.html
@@ -16,7 +16,7 @@
     {% if article.tags %}
     Tags:
     {% for tag in article.tags %}
-      <a href="{{ SITEURL }}/{{ tag.url }}">{{ tag }}</a>
+      <a href="{{ SITEURL }}/{{ tag.url }}">{{ tag }}</a>{% if not loop.last %},{% endif %}
     {% endfor %}
     {% endif %}
   </div>