update head styles (#330)

Author: Arhell

_layouts/bootstrap.html

@@ -16,7 +16,7 @@
     <link href="https://fonts.googleapis.com/css?family=Lato&display=swap" rel="stylesheet">
     <link href="//netdna.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
 
-    <link rel="stylesheet" href="/css/style.css">
+    <link rel="stylesheet" href="/css/style.min.css">
 
     <!-- Other -->
     <link title="Codeception Blog" type="application/rss+xml" rel="alternate" href="/rss.xml">