Added margin-top option

git-svn-id: https://plugins.svn.wordpress.org/need-to-share/trunk@967609 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added user in readme.txt

git-svn-id: https://plugins.svn.wordpress.org/need-to-share/trunk@967611 b8457f37-d9ea-0310-8a92-e5e31aec5664