A minimal AsciiDoc input example I could think of for the output you described:
Follow https://www.rfc-editor.org/rfc/rfc8482.txt[RFC 8482] and
Please let me know if this works for you. If it doesn't please provide an example AsciiDoc input.
For future questions: there's also the Zulip chat. As more and more people have moved over there, you might get your answers there more quickly.