orderedListItemToMan :: WriterOptions -- ^ options
                          -> String   -- ^ order marker for list item
                          -> Int      -- ^ number of spaces to indent
                          -> [Block]  -- ^ list item (list of blocks)
                          -> State WriterState Doc
orderedListItemToMan _ _ _ [] = return empty
orderedListItemToMan :: WriterOptions -- ^ options
                          -> String   -- ^ order marker for list item
                          -> Int      -- ^ number of spaces to indent
                          -> [Block]  -- ^ list item (list of blocks)
                          -> State WriterState Doc
orderedListItemToMan _ _ _ [] = return empty
orderedListItemToMan _ _ _ [] = return empty