Add fonts asynchronousy and add all css inline

layouts/partials/footer_scripts.html

@@ -1,3 +1,12 @@
+<script src="https://ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js"></script>
+<script>
+  WebFont.load({
+    google: {
+      families: ['Raleway:400,600,700', 'Merriweather:300,300i,700,700i', 'Ubuntu+Mono:400,700']
+    }
+  });
+</script>
+
 {{ if .Site.Params.highlightjs }}
   <script src="{{ .Site.BaseURL }}js/highlight.min.js" defer></script>
   {{ range .Site.Params.highlightjslanguages }}