> Not all titles are positive law — some titles are "evidence of law" rather than the legal text itself (see 1 USC § 204)
The vocabulary of this sentence is inconsistent with section 204 [0]. It is the positively enacted titles which are "legal evidence of the laws". The other titles merely "establish prima facie" what the law is, subordinate to a closer examination of the bills actually passed, which control. In other words, "evidence of law" is the stronger of the two, not the weaker, as the readme suggests.