f - fix doc links

Author: jkczyz

lightning/src/ln/channelmanager.rs

@@ -8584,6 +8584,7 @@ macro_rules! create_offer_builder { ($self: ident, $builder: ty) => {
 	/// Errors if the parameterized [`Router`] is unable to create a blinded path for the offer.
 	///
 	/// [`Offer`]: crate::offers::offer::Offer
+	/// [`DefaultMessageRouter`]: crate::onion_message::messenger::DefaultMessageRouter
 	/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
 	pub fn create_offer_builder(
 		&$self, absolute_expiry: Option<Duration>
@@ -8659,6 +8660,7 @@ macro_rules! create_refund_builder { ($self: ident, $builder: ty) => {
 	/// - the parameterized [`Router`] is unable to create a blinded path for the refund.
 	///
 	/// [`Refund`]: crate::offers::refund::Refund
+	/// [`DefaultMessageRouter`]: crate::onion_message::messenger::DefaultMessageRouter
 	/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
 	/// [`Bolt12Invoice::payment_paths`]: crate::offers::invoice::Bolt12Invoice::payment_paths
 	/// [Avoiding Duplicate Payments]: #avoiding-duplicate-payments