Write a documentation about a node.js +socket.io math multiplayer game running with websockets hosted in a vps server — 3

I have a node.js +socket.io math multiplayer game running with websockets hosted in a vps server , and its database is helped by mongoDB. I would like a document to be written on the behaviour of this multiplayer. Please create a word document. Please let me know the price giving the number typed pages of word document. If you know (node.js +socket.io+mongoDB) well , no need to ask for the code to decide the price