Description
White space and newlines might seem trivial for those who have some kind of coding background. But I think talking about whitespace (specifically Introduction to R, ex: creating objects in the script or console(3+5 = 3 + 5) ), how it makes no difference in R, but makes difference in Python. This would also be beneficial when learners are coding along, they do not need to be bogged down on matching everything "space for space".
Maybe also a minor section or note on punctuation (the difference between braces, colon, etc). I have gotten the question of why use one type of brace over another, that seems to be the most common question I get from novices. Making a note of that ahead of time to help prevent some of these mistakes because they are most of the time the most common mistakes.