Everyone can contribute to Drupal documentation. Drupal beginners are especially welcome. Beginner contributors have a wonderful advantage over the experts because they can tell when steps are skipped and point out when assumptions are made. We will walk through the difference between Official Guides and Community Guides plus get started giving back to Drupal.

Links:
https://drupal.org/documentation
https://www.drupal.org/community/contributor-guide
https://drupal.org/drupalorg/docs