No offense to Romi but the text version of the notes are a little hard for me to follow and the videos aren't bad but I can't really reference those on the fly.
I suggest watch runs and write your own note/route. You can take romi's one as starter. That way you'll learn faster the game.
I don't know Romi's route/note, i did my own route very similar to Souki_ao but optimized. (iirc i could still improve some part)
I could like share mine but tbh it's in half french and english, It miss chests/back-up and some stuff i didn't need to write.
I'm still new to all of this so if something is written out in a more detailed way, it's easier for me to understand quicker and watching runs, I feel like I might miss things cause certain things go by so fast.