Readme updated

git-svn-id: https://plugins.svn.wordpress.org/s3bubble-amazon-s3-audio-streaming/trunk@850863 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme update

git-svn-id: https://plugins.svn.wordpress.org/s3bubble-amazon-s3-audio-streaming/trunk@850866 b8457f37-d9ea-0310-8a92-e5e31aec5664