docs: update release notes

Author: ellemouton

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

@@ -285,7 +285,8 @@
   required for the Gossip 1.75 protocol.
 
 * Use the new interfaces added for Gossip 1.75 throughout the codebase 
-  [1](https://github.com/lightningnetwork/lnd/pull/8252/).
+  [1](https://github.com/lightningnetwork/lnd/pull/8252/) 
+  [2](https://github.com/lightningnetwork/lnd/pull/8253).
 
 ## Testing