Rework the description to a series of bullets, More focus on numbered lists

git-svn-id: https://plugins.svn.wordpress.org/listly/trunk@1007425 b8457f37-d9ea-0310-8a92-e5e31aec5664
Shorten bullets

git-svn-id: https://plugins.svn.wordpress.org/listly/trunk@1007426 b8457f37-d9ea-0310-8a92-e5e31aec5664