TLDR: keyboard combination <C-c '> that should be formatted as `C-c '` is instead formatted as `C-c '' (double single quotes instead of single quote and backtick). I observe it in Info Manual of Org Mode Compact Guide ch. 11.4, 12.4.
I know this is a very minor issue (should I even call it one?:)) but nevertheless think it is better to report than not.
On a side note, I took a quick look at