delete readme

git-svn-id: https://plugins.svn.wordpress.org/wp-creator-calculator/trunk@805787 b8457f37-d9ea-0310-8a92-e5e31aec5664
upload readme

git-svn-id: https://plugins.svn.wordpress.org/wp-creator-calculator/trunk@805788 b8457f37-d9ea-0310-8a92-e5e31aec5664