forgot about those quotes

docs/_includes/header.html

@@ -14,7 +14,7 @@
 <!-- Bootstrap core CSS -->
 <link href="/assets/css/bootstrap.css" rel="stylesheet">
 
-{% if page.layout == default %}
+{% if page.layout == "default" %}
 <!-- Documentation extras -->
 <link href="/assets/css/docs.css" rel="stylesheet">
 <link href="/assets/css/pygments-manni.css" rel="stylesheet">