readme.txt remove free text

git-svn-id: https://plugins.svn.wordpress.org/jsocial-responsive-floating-social-sharing-media-bar/trunk@1034230 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt short description

git-svn-id: https://plugins.svn.wordpress.org/jsocial-responsive-floating-social-sharing-media-bar/trunk@1034234 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt short description2

git-svn-id: https://plugins.svn.wordpress.org/jsocial-responsive-floating-social-sharing-media-bar/trunk@1034236 b8457f37-d9ea-0310-8a92-e5e31aec5664