Fixed copy error


git-svn-id: https://plugins.svn.wordpress.org/lookbook-embed/trunk@989720 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed typo in readme

git-svn-id: https://plugins.svn.wordpress.org/lookbook-embed/trunk@989722 b8457f37-d9ea-0310-8a92-e5e31aec5664