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git-svn-id: https://plugins.svn.wordpress.org/custom-content-shortcode/trunk@959410 b8457f37-d9ea-0310-8a92-e5e31aec5664
edit readme

git-svn-id: https://plugins.svn.wordpress.org/custom-content-shortcode/trunk@959411 b8457f37-d9ea-0310-8a92-e5e31aec5664