Updated readme file.

git-svn-id: https://plugins.svn.wordpress.org/date-and-time-widget/trunk@836730 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme file.

git-svn-id: https://plugins.svn.wordpress.org/date-and-time-widget/trunk@836732 b8457f37-d9ea-0310-8a92-e5e31aec5664