Replacing readme.

git-svn-id: https://plugins.svn.wordpress.org/array-toolkit/trunk@918377 b8457f37-d9ea-0310-8a92-e5e31aec5664
Replacing readme.

git-svn-id: https://plugins.svn.wordpress.org/array-toolkit/trunk@918378 b8457f37-d9ea-0310-8a92-e5e31aec5664