Edit settings of Onlyoffice docker

I’ve decided to have a look at new docker implementation of Nextcloud so I ran it together with Onlyoffice following this tutorial https://medium.com/onlyoffice/deploying-onlyoffice-with-nextcloud-using-docker-compose-4a93387cc681
Everything seems to work fine except for one small thing, I cannot edit .doc files with Onlyoffice, it’s not choosen in default formats and if I try to choose it manually I’m getting an error

onlyoffice HealthcheckRequest on check error: Bad healthcheck status

Am I doing it wrong? How do I change settings for an application running in docker?