Can be found in English here (for Christian T.)
http://docs.moodle.org/dev/Workshop_2.0_specification#Grade_for_assessment
Love this mod! You can have a peer-assessed activity, with text or file uploading. You can include various grading strategies including defined rubrics. There are two grades - one for submission and one for assessment. And lastly, you have the ability to publish selected projects deemed worth of viewing by other students! Very cool and thank you Helen and Adrian (and Eric for translating!).