Updated readme to highlight code example

git-svn-id: https://plugins.svn.wordpress.org/edit-any-table/trunk@1012195 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme to highlight code example

git-svn-id: https://plugins.svn.wordpress.org/edit-any-table/trunk@1012198 b8457f37-d9ea-0310-8a92-e5e31aec5664