fixed spelling issue

git-svn-id: https://plugins.svn.wordpress.org/slick-doc-it/trunk@846489 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix title

git-svn-id: https://plugins.svn.wordpress.org/slick-doc-it/trunk@846491 b8457f37-d9ea-0310-8a92-e5e31aec5664