I would like to make a new wiki article with the data for this tournament, but I can'0t seem to find how to make a new wiki page, even though I have the privilege to edit that stuff. can someone help me?
Just edit the browsers addressbar to something like
https://wl.widelands.org/wiki/edit/YOUR ARTICLE NAME
If 'YOUR ARTICLE NAME' doesn't exist, you get a clean editbox where you can write your article. Before saving the first time make sure you have a decritption in 'Page summary'