You will live in a really cosy flat with my lovely (Hidden by Airbnb) Morelio, Anna and Erwin. They will help you to find the next supermarket, best documenta places, nice bars and good parties.
There are several busses and tram lines as well as a station where you can rent bikes in the direct surroundings.
5 minutes by walk there is a supermarket where you get everything you need (glutenfree and vegan products too).
Definitely a perfect place to stay during documenta.