Woops, the newly created issue http://bts.grml.org/grml/issue1075 addresses the 
same issue. Dropping this old issue instead....

JFTR:

* http://grml.org/git/
* http://wiki.grml.org/doku.php?id=contribute
* grml-policy.git

Provide documentation that lists what contributors should do for creating a 
patch, like: cloning the according git repository, $EDITING, git create-patch, 
git send-email and report to dev mailinglist/BTS.

Created (empty) page http://wiki.grml.org/doku.php?id=contribute for this task.