Add a placeholder page which redirects to getkudu.io

(will replace this with the proper site once we figure out the
right build setup for jekyll, etc)
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..761ce27
--- /dev/null
+++ b/index.html
@@ -0,0 +1,12 @@
+<html>
+<head>
+<meta http-equiv="refresh" content="0;url=http://getkudu.io/" />
+</head>
+<body>
+  <p>Apache Kudu (incubating) is currently in the progress of migrating
+  its site to the ASF hosting infrastructure.<p>
+  <p>In the meantime, please visit <a href="http://getkudu.io/">getkudu.io</a></p>
+</body>
+</html>
+
+