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 get this file by exporting org-guide.org as Info file.
And I get this org-guide.org (with doc-setup.org) from
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/doc.

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 org-guide.org and it seems that
<{{{kbd(C-c
')}}}> is the culprit. But I'm quite a novice in both Emacs and Org Mode so
don't how to tackle this problem.