doc: fix some recent doc nits

* Fix formatting.
* Fix list numbering.
* Unify abbreviation casing.
* Use an uppercased constructor in a hypothetic code example.
* Fix typos.
* Fix sorting in sections and references.

PR-URL: https://github.com/nodejs/node/pull/30341


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>