message: [doc] fix comment for mdnssd
diff: @@ -51,7 +51,7 @@ namespace otbr {
  namespace Mdns {
  /**
  - * This class implements MDNS service with avahi.
  + * This class implements MDNS service with mDNSResponder.
  *
  */
  class PublisherMDnsSd : public Publisher
  