How to edit wiki pages at https://www2.sqlite.org/cvstrac/wiki?
Those are historical pages, no longer maintained and not editable by the general public. If you check the "history" link on that page you'll see that the last edit was in 2007.
Note that CVSTrac has been disused for a long time. At some point, I will probably stop paying for the domain name. The current expiration date is 2021-08-06. It might not be extended beyond that date.