I feel we gave 2 goals : 1) The one who has written it should be able to understand it after 2 weeks, 2 months and 2 years later too. 2) Someone who has knowledge about the module should also be able to understand.

I have found these 2 playlists very useful https://www.youtube.com/watch?v=mhUQe4BKZXs&list=PLkQkbY7JNJuBoTemzQfjym0sqbOHt5fnV https://www.youtube.com/watch?v=xpDnVSmNFX0&list=PLMCXHnjXnTnvo6alSjVkgxV-VH6EPyvoX