f - fix doc links

Author: jkczyz

lightning/src/ln/invoice_utils.rs

@@ -435,7 +435,7 @@ where
 }
 
 #[cfg(feature = "std")]
-/// See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
+/// See [`create_invoice_from_channelmanager`]
 /// This version allows for providing custom [`PaymentHash`] and description hash for the invoice.
 ///
 /// This may be useful if you're building an on-chain swap or involving another protocol where
@@ -475,7 +475,7 @@ where
 }
 
 #[cfg(feature = "std")]
-/// See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
+/// See [`create_invoice_from_channelmanager`]
 /// This version allows for providing a custom [`PaymentHash`] for the invoice.
 /// This may be useful if you're building an on-chain swap or involving another protocol where
 /// the payment hash is also involved outside the scope of lightning.