update README
update README

Change-Id: I783cf01ecd4b92d932d55076c4099222d50f6349
Reviewed-on: http://review.couchbase.org/72524
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

steveyen/moss,steveyen/moss,couchbaselabs/moss