updated link and image

git-svn-id: https://plugins.svn.wordpress.org/printfriendly/trunk@852434 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated link and image

git-svn-id: https://plugins.svn.wordpress.org/printfriendly/trunk@852435 b8457f37-d9ea-0310-8a92-e5e31aec5664