You can just use normal markdown format.

For example, if you have your screenshots in a directory in the repo called `docs/images` you can include it with:


Thanks! In the next 24 hours I will add screenshots :-)

I would look at one of the many other projects that have them in their readme and see how they do it, I think it's with a certain markdown syntax but I don't know it off the top of my head. Hope this helps.