Alex has been copying the documentation from the website into the Wiki. The idea behind this is that the documentation on the website is partially dated and structured in a way that does not reflect the way new users come to MusicBrainz any more.
I assume this to be a slow process. Alex has already wikified all the pages. Now we have to intertwingle them and then we will understand what needs correction and updating. When the docs are well intertwingled into the wiki, people will start to use the MusicBrainzDocumentation on the Wiki; that is they will post questions, summarize long texts, delete obsolete stuff etc. Hopefully after half a year or so, this will give us some fine new docs that we can then copy to the main server again.
Alex even hat the idea to add a Wiki markup interpreter to the server, so that updating the doc would then only mean to copy the markup from the Wiki to the server.