Add "&display=swap" to Google Fonts URL.

Author: bgrainger

docs/layouts/partials/header.html

@@ -51,11 +51,9 @@
     <meta property="fb:app_id" content="422535981632483" />
 
     <link href="https://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-combined.min.css" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap" rel="stylesheet">
 	<style type="text/css">
 /* derived from https://github.com/fsprojects/SQLProvider/blob/gh-pages/content/style.css */
-
-@import url(https://fonts.googleapis.com/css?family=Droid+Sans|Droid+Sans+Mono|Open+Sans:400,600,700);
-
 pre {
 	  word-wrap: inherit;
 }