I think he's looking for a more in-depth walk through on the tools and where to download them. A kind of "Getting Started with Refinery" page. At least, that is what I was first looking for.
https://github.com/itchio is the place you need to go, RiderMty. There you can download and read the Documentation you need. Github can be a bit intimidating to those not familiar with it, (me included).
https://itch.io/docs/butler/ Is the general overview of the main tools. I've not dived into refinery yet, so sorry if I wasn't much help. :)