This Plugin adds the required Author Meta Tags to the header of all the pages on your WordPress site. It is specifically designed to be as simple as p
No, this version of the plugin is specificlly designed for a super easy install for a single author site. A multi-author version will soon be available but it is slightly more complecated than this one to set up for the user.
Navigate to Settings >> Google+ Author. There you should be able to paste your url in the box provided.