I have looked at https://askubuntu.com/help/how-to-ask . A style guide shows what is wanted and how to incorporate various things. For example, most professional journals and conference proceedings have a LaTeX, MS Word, CSS, etc., "template" to handle formatting (bold, underlined, italic, URLs, etc.)? Are the instructions as to how to use the embedded on-line editor (that I am using to compose this question) to achieve the conforming formats? An Ask Ubuntu moderator modified my posting,both in content (clarity for the intended audience) but also converted the format of certain parts of the posts ("commands", GUI use, etc.). Although I appreciate such work, it is simpler to compose to the required style than post-posting edit.
Well, it is all there. See when Asking a Question:
Quick Help as text below tool bar
Link to https://askubuntu.com/editing-help (same link I give in comment)
Help Center, search for "format" or "MarkDown" this is how it is called (An advanced alternative of the legacy BBCode). Many editors in Ubuntu support it.
Link to Meta, If you find nothing and want to ask about site features and community.