README: add new et-pro description
README: add new et-pro description

fraenki/plugins,fabianfrz/plugins,fraenki/plugins,dharrigan/plugins,evbevz/plugins,fraenki/plugins,fabianfrz/plugins,evbevz/plugins,dharrigan/plugins,fraenki/plugins,evbevz/plugins,fabianfrz/plugins,evbevz/plugins,evbevz/plugins,fabianfrz/plugins,fabianfrz/plugins,evbevz/plugins,dharrigan/plugins,fraenki/plugins,fraenki/plugins,fraenki/plugins,fraenki/plugins,dharrigan/plugins,fabianfrz/plugins,fabianfrz/plugins,dharrigan/plugins,evbevz/plugins,dharrigan/plugins