Add SEO tags to all pages

feed.xml

@@ -6,7 +6,7 @@ redirect_from: "/rss"
 	<channel>
 		<title>{{ site.name | xml_escape }}</title>
 		<description>{% if site.description %}{{ site.description | xml_escape }}{% endif %}</description>		
-		<link>{{ site.url }}</link>
+		<link>{{ site.blog_url }}</link>
 		<atom:link href="{{ site.url }}/feed.xml" rel="self" type="application/rss+xml" />
 		{% for post in site.posts limit:10 %}
             {% if post.hidden == null or post.hidden == false %}