Docs - overview subpages

The problem I’m having

I want to split the overview page (docs) into subpages so the overview page is not too long.

The context of why I’m trying to do this

The overview page would be very long, I want to keep it organized into subpages.

What I’ve already tried

I tried to create .md file and a link from the overview page to the .md file. I tried to find some documentation on it but I found only this: dbt Developer Hub - it didn’t work for me.