readme.txt

git-svn-id: https://plugins.svn.wordpress.org/wp-campaign-manager/trunk@875801 b8457f37-d9ea-0310-8a92-e5e31aec5664
typo

git-svn-id: https://plugins.svn.wordpress.org/wp-campaign-manager/trunk@875802 b8457f37-d9ea-0310-8a92-e5e31aec5664