The markup eats leading newlines and turns code blocks into normal text, and the normal text eats asterisks. Might I suggest backquote code quoting, and backslash escaping of special chars? (Markdown)
This is Arc, not CL. As part of the general plan to GC CL in Arc, I decided it would be enough to use one asterisk on globals. I now prefer one to two; an asterisk at the end is like one in text, warning you of an exceptional situation.