Two nitpicks: 1. Why are the images cropped so strangely on mobile? It makes this article really hard to read. 2. Shouldn’t the title be “Redesigning the GitHub Repository Page”? ^ And a meta question for programmers, what do you do when English grammar calls for a question mark to be inside your quotation mark at the end of a sentence, but you’re literally quoting something that should not include the question mark?…
English grammar doesn't call for it, not necessarily. It's a matter of style, and different style guides prescribe different methods. There's no "officially correct" way, but to me, the only position that makes sense is to put trailing punctuation outside the quotation marks, except in the case where said punctuation is actually part of the source material. Doing otherwise can change the meaning of the quotation.