corrected grammar

git-svn-id: https://plugins.svn.wordpress.org/squirrly-seo/trunk@937082 b8457f37-d9ea-0310-8a92-e5e31aec5664
presented a new feature

git-svn-id: https://plugins.svn.wordpress.org/squirrly-seo/trunk@937083 b8457f37-d9ea-0310-8a92-e5e31aec5664