Multiple citations

Parses:

    cite "DC Code §§ 1-206.01, 1-206.02 through 1-206.03, 1-206.04, and 1-206.05 through 1-206.06"

But now breaks this singular example:

    cite "DC Code § 1-206.01"

If the regexes are ordered [multi, singular] the multi-cite example works and the singular example fails with no matches. If the regexes are ordered [multi, plural] then a multiple-citation string only captures the first citation because the singular citation also (correctly) matches the beginning of the string.