[SPEC-CHANGE] lang parameter, minor line type changes, clarifications...

[James Tomasino]

On 6/7/20 4:27 PM, solderpunk wrote:
> The definition of unordered list item lines has been changed so that
> they begin not just with "*" but with "* ".
> Lines beginning with ">" are now defined to be quote lines, as per
> popular demand.

Just to be clear, lists have a mandatory space after them, but for
quotes and headings and links the whitespace is still set to zero-or-more?