In the How-to-Contribute article second sentence it says:
If you are looking at this page the chances are good that you are considering to contribute to this wiki.
This sentence is not clear to me, may be change it to be one of the following: We welcome any contributions to this wiki - adding, correcting and complementing articels as well as fixing typos, language and links. We welcome any contributions to this wiki. The fact that you found this page, shows your good intention. Keep up the good work.