There is a listing of wiki-like markup that ScalaDoc supports. Unfortunately the example of unordered lists was somewhat confusing:
Unordered list item: $ – item becomes a list item ($ signifies the left margin of a line (it doesn’t appear in the code), note the space between the left margin and the dash). More leading space characters are allowed between the left margin and the dash: list items with the same number of leading spaces are at the same level, more space creates sub-levels.
After some struggle; I found the solution. Here is an example:
/** * Example of an unordered list * * - item lalala * - item lululu */
keyword bullet lists markdown scaladoc