Add the CSS import in the layout

Add import CSS

Correct import

Author: Dedelweiss

docs/_layouts/base.html

@@ -1,5 +1,6 @@
 <link rel="dns-prefetch" href="//fonts.googleapis.com">
 <link rel="preconnect" href="https://cdnjs.cloudflare.com" crossorigin>
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+<link rel="stylesheet" href="{{site.baseurl}}/css/dottydoc.css">
 
 {{ content }}