edit some text 

git-svn-id: https://plugins.svn.wordpress.org/like-box/trunk@1050327 b8457f37-d9ea-0310-8a92-e5e31aec5664
edit readme.txt

git-svn-id: https://plugins.svn.wordpress.org/like-box/trunk@1050335 b8457f37-d9ea-0310-8a92-e5e31aec5664