[GovDelivery-mismatches] Added the content-public-dc2 and media subdomains
[GovDelivery] Added support for the public-dc2 and www subdomains, listed the links subdomain as problematic, and excluded the content-public-dc2 and media subdomains as mismatches.
Added a new ruleset for CuidadoDeSalud.gov
Added a new ruleset for HealthCare.gov