Sorry for that problem, last several updates made the plugin a bit complicated. I'm already working on the extended description with plugin manual. I'll publish it at the end of this week. Thanks!
Still working on the plugin update, the manual I wrote refers to some new features of the plugin that's why it will be available with the next update. It is planned on 17 of December. Thanks for your interest and patience!
Sorry, I have to postpone the update due to the problems with new feature - "cache whole pages for guests". As soon as I resolve it I'll publish the update with user manual. Thanks for your patience!