Updated readme file.

git-svn-id: https://plugins.svn.wordpress.org/genesis-custom-footer/trunk@800218 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add assets folder

git-svn-id: https://plugins.svn.wordpress.org/genesis-custom-footer/trunk@800219 b8457f37-d9ea-0310-8a92-e5e31aec5664