The haskell.org website is a wiki, meaning anyone can edit or add new content. To do this you must first create an account and log in. This is easy!
- Create an account (or login if you already have an account)
On the bottom of each wiki page you will find links for creating an account, logging in, editing the current page, and so on. Help on editing is available, including information on editor support.
More help on editing is available here: