Fixes "Normative references in informative sections are not allowed" warning message reported by ReSpec.
The warning appeared because Respec assumes that a spec is informative-only in the absence of a conformance section, see discussion in:
https://github.com/w3c/respec/issues/2580
Fixes "Normative references in informative sections are not allowed" warning message reported by ReSpec.
The warning appeared because Respec assumes that a spec is informative-only in the absence of a conformance section, see discussion in: https://github.com/w3c/respec/issues/2580