docs: release notes 18.0

Author: carlaKC

docs/release-notes/release-notes-0.18.0.md

@@ -187,7 +187,9 @@ call where arguments were swapped.
 bitcoin peers' feefilter values into account](https://github.com/lightningnetwork/lnd/pull/8418).
 
 * [Preparatory work](https://github.com/lightningnetwork/lnd/pull/8159) for 
-  forwarding of blinded routes was added.
+  forwarding of blinded routes was added, along with [support](https://github.com/lightningnetwork/lnd/pull/8160)
+  for forwarding blinded payments. Forwarding of blinded payments is disabled 
+  by default, and the feature is not yet advertised to the network.
 
 ## RPC Additions