move from css folder to base dir

_includes/head.html

@@ -14,7 +14,7 @@
   </title>
 
   <!-- CSS -->
-  <link rel="stylesheet" href="{{ site.baseurl }}/css/styles.css">
+  <link rel="stylesheet" href="{{ site.baseurl }}/styles.css">
 
   <!-- Icons -->
   <link rel="apple-touch-icon-precomposed" sizes="144x144" href="{{ site.baseurl }}/public/apple-touch-icon-precomposed.png">