some text updates

git-svn-id: https://plugins.svn.wordpress.org/related-images/trunk@965324 b8457f37-d9ea-0310-8a92-e5e31aec5664
some text updates

git-svn-id: https://plugins.svn.wordpress.org/related-images/trunk@965328 b8457f37-d9ea-0310-8a92-e5e31aec5664