updates to readme

git-svn-id: https://plugins.svn.wordpress.org/the-casengo-chat-widget/trunk@860743 b8457f37-d9ea-0310-8a92-e5e31aec5664
updates to readme

git-svn-id: https://plugins.svn.wordpress.org/the-casengo-chat-widget/trunk@860924 b8457f37-d9ea-0310-8a92-e5e31aec5664
updates to readme

git-svn-id: https://plugins.svn.wordpress.org/the-casengo-chat-widget/trunk@861485 b8457f37-d9ea-0310-8a92-e5e31aec5664
updates to readme

git-svn-id: https://plugins.svn.wordpress.org/the-casengo-chat-widget/trunk@861595 b8457f37-d9ea-0310-8a92-e5e31aec5664