fix docs

Author: shamardy

lightning/src/ln/channelmanager.rs

@@ -4292,6 +4292,7 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 	/// with which `accept_inbound_channel` call.
 	/// 
 	/// [`Event::OpenChannelRequest`]: crate::util::events::Event::OpenChannelRequest
+	/// [`Event::ChannelClosed::user_channel_id`]: crate::util::events::Event::ChannelClosed::user_channel_id
 	pub fn accept_inbound_channel(&self, temporary_channel_id: &[u8; 32], user_channel_id: Option<u64>) -> Result<(), APIError> {
 		let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);