docs: add release notes

Author: jtobin

docs/release-notes/release-notes-0.7.0.md

@@ -119,6 +119,13 @@
   when requesting quotes. The field can contain optional user or authentication
   information that helps the price oracle to decide on the optimal price rate to
   return.
+
+- The error code returned in a response from a price oracle now has a
+  [structured form](FIXME), allowing price oracles to either indicate
+  that a given asset is unsupported, or simply to return an opaque
+  error. "Unsupported asset" errors are forwarded in reject messages
+  sent to peers.
+
 - [Rename](https://github.com/lightninglabs/taproot-assets/pull/1682) the
   `MintAsset` RPC message field from `universe_commitments` to
   `enable_supply_commitments`.
@@ -236,5 +243,6 @@
 
 - ffranr
 - George Tsagkarelis
+- jtobin
 - Olaoluwa Osuntokun
 - Oliver Gugger