doc: fix quotes mistypes in inline code blocks

This fixes trivial invalid quotes mistypes in inline code blocks,
e.g. forgotten quotes or mixed order.

Whether this could be easily automatically checked in lint is a
separate question: e.g. `'` is valid.

PR-URL: https://github.com/nodejs/node/pull/19713


Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>