fixup! Move default highlight.js highlighting into a web worker

Author: Steve Day

public/js/highlight.js

@@ -4,4 +4,4 @@ onmessage = function(event) {
     importScripts('/vendor/plugins/highlight/highlight.pack.js');
     var result = self.hljs.highlightAuto(event.data);
     postMessage(result.value);
-}
+};