3.13.3 release notes: edits

Author: michaelklishin

release-notes/3.13.3.md

@@ -70,8 +70,8 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
 
    GitHub issue: [#11173](https://github.com/rabbitmq/rabbitmq-server/issues/11173)
 
- * Optimised classic queue message store recovery in cases where a message was routed
-   to multiple queues.
+ * Classic queue message store recovery was optimized (peak memory footprint-wise) for cases where large (multiple MiB in size) messages
+   were routed to multiple queues.
 
    Contributed by @gomoripeti.
 
@@ -120,7 +120,7 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
 #### Enhancements
 
  * A new Prometheus-exposed metric, `rabbit_stream_segments`, indicates how many stream segment files
-   there are on a node.
+   there are on the target node.
 
    Contributed by @markus812498.