I would like to highlight parts of the payment details section and greeting with bold or italic text, or even headlines. When writing an offer, I put terms and conditions below the actual list of products, and I would like to structure those a bit better.
For me, a subset of Markdown that just supports making text bold would already do the job. Headings, italics, or lists would be cool, but not necessary. I do not need a full text editor; if I have a document that complex, I'll use Word anyway.
I apologize if this is a duplicate, but I only found this discussion, which seems to be focused on emojis.