doc: update tools .md files for upcoming lint/formatting

Looks like only one .md file in `tools` needs to be changed.

PR-URL: https://github.com/nodejs/node/pull/40155


Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>