doc: harmonize YAML comments

Refs: https://github.com/nodejs/remark-preset-lint-node/pull/139

PR-URL: https://github.com/nodejs/node/pull/35575


Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ben Coe <bencoe@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>