3) That is for an inline code span only; can interrupt the span, put an escaped backtick, reopen the span. There is an example in the document. In fenced block

3) That is for an inline code span only; can interrupt the span, put an escaped backtick, reopen the span. There is an example in the document. In fenced blocks, anything is accepted. 2) Yes, that mostly implies [1],[2]... pattern. Have to think of other solutions. 1) Well, yes. Aestetics is difficult to quantify. I use empty lines so headers stand out.