Docs still referance Mongo DB

[glynhudson]

Describe the issue

I noticed some docs for how to deploy the self-hosted version still refers to Mongo, despite this DB not being used anymore https://docs.shellhub.io/self-hosted/deploying#setup-mongodb-persistent-volume

[geovannewashington]

Thanks for catching this, and you're right - MongoDB hasn't been part of the deployment since Postgres became the default DB.

Good news: we're working on a complete revamp of the docs to replace this one. We're currently auditing and catching up all the content to match the latest changes (including this) before it ships. If you want a preview, you can already run a self-hosted dev instance in the master branch and see it live at docs.localhost, served from ui/apps/docs in the repo.

Keeping this open until the updated docs go live.