Merge from origin/emacs-28

7b4bdf7b9b Remove the AUCTeX subsection from MS-Windows FAQ
d2a5631552 Update AUCTeX FAQ entry
177718bc6d Update string-to-number documentation to bignum Emacs
74cc3b525f Fix doc string references to tags-loop-continue

diff --cc doc/lispref/strings.texi
Simple merge

diff --cc doc/misc/efaq-w32.texi
Simple merge

diff --cc lisp/vc/vc-dir.el
Simple merge