Added .pot file.

git-svn-id: https://plugins.svn.wordpress.org/step-by-step/trunk@926014 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added .pot file.

git-svn-id: https://plugins.svn.wordpress.org/step-by-step/trunk@926016 b8457f37-d9ea-0310-8a92-e5e31aec5664