register typescript language for hljs (#39)

Author: colegoldsmith

src/js/vendor/highlight.bundle.js

@@ -34,6 +34,7 @@
   hljs.registerLanguage('shell', require('highlight.js/lib/languages/shell'))
   hljs.registerLanguage('sql', require('highlight.js/lib/languages/sql'))
   hljs.registerLanguage('swift', require('highlight.js/lib/languages/swift'))
+  hljs.registerLanguage('typescript', require('highlight.js/lib/languages/typescript'))
   hljs.registerLanguage('xml', require('highlight.js/lib/languages/xml'))
   hljs.registerLanguage('yaml', require('highlight.js/lib/languages/yaml'))
   ;[].slice.call(document.querySelectorAll('pre code.hljs[data-lang]')).forEach(function (node) {