I have kept it quite simple, most of them are the general ones like most authors use. But yeah... Here they are...
¹
²
(Scene Change) When you see a superscript like this, it would be referring to the change in scene.
"..." (Unable to speak)
"Normal Speech"
"Thinking"
'Sounds'
//
These are letters or any sort of information given in text form. (You would get a clear understanding when they are used in chapters.)
\\
This is most of it. I don't think there would be any more... But if there are, I would add them here.