Add basic index.html.

index.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>This page is powered by Markdown.js</title>
+  </head>
+  <body>
+    <h1>Hello World! (for now ...)</h1>
+  </body>
+</html>