add screenshot-2.png

git-svn-id: https://plugins.svn.wordpress.org/affilizr/trunk@949726 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add screenshot 2

git-svn-id: https://plugins.svn.wordpress.org/affilizr/trunk@949728 b8457f37-d9ea-0310-8a92-e5e31aec5664