added github pages support

docs/index.html

@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<html><head><title>Clojupyter</title><meta charset="utf-8"><meta content="width=device-width, initial-scale=1" name="viewport"><script src="https://use.fontawesome.com/releases/v5.0.6/js/all.js" type="text/javascript"></script><link href="/css/site.css" rel="stylesheet" type="text/css"></head><body class="body-container"><div id="app"></div><script src="/js/app.js" type="text/javascript"></script></body></html>