[website] [fix] explicitly pass meta description

templates/base.html

@@ -12,8 +12,8 @@
 	<link type="text/css" rel="stylesheet" href="css/wn-web.css">
 	<link rel="shortcut icon" href="{{ favicon }}" type="image/x-icon">
 	<link rel="icon" href="{{ favicon }}" type="image/x-icon">
-	{% if description -%}
-	<meta name="description" content="{{ description }}">	
+	{% if meta_description -%}
+	<meta name="description" content="{{ meta_description }}">	
 	{%- endif %}
 	{% block header -%}
 	{%- endblock %}