Usually on those repositories there’s the full code without the need of the small modifications on a separate folder.
It’s not clear to me exactly what you want. Would that be a tutorial that starts from zero code and build it step by step?
The problem with this approach is that maybe 90% of the work would be related to create the Android app, with a lot of Android specifics and in this case that’s not the goal. The tutorials target how to use ML on your app and that requires some code to be in place already.