languagetool.cfg for word2vec what content, how should it loock like

I would like to test word2vec
according to GitHub - gulp21/languagetool-neural-network is should set word2vecDir somehow.

I don’t have somewhere a languagetool.cfg could someone tell me how such a cfg should look like and what content is possible in this file and how I have to tell llanguagetool-server.jar that it has to use this file?