Add links to design proposals.

Signed-off-by: Sam Barker <[email protected]>

Author: SamBarker

_posts/2025-11-28-release-0_18_0.md

@@ -18,13 +18,19 @@ The main highlights of this release are:
 
 ### Filter API Improvements
 
-* Filters now have a convenient mechanism to convert from topic ids [KIP-516](https://cwiki.apache.org/confluence/display/KAFKA/KIP-516%3A+Topic+Identifiers) to topic names.
+* Filters now have a convenient mechanism to convert from topic
+  ids [KIP-516](https://cwiki.apache.org/confluence/display/KAFKA/KIP-516%3A+Topic+Identifiers) to topic names. This is
+  based
+  on [design proposal#008](https://github.com/kroxylicious/design/blob/main/proposals/008-topic-name-lookup-facility.md)
 * For authenticated use-cases, filters now have access to a Subject API that provides convenient access to the authenticated principals established by the channel.  This is a building block
-  for filters that need to enforce authorization checks or want to write an audit trail of Kafka actions.
+  for filters that need to enforce authorization checks or want to write an audit trail of Kafka actions. Full context
+  on where our thinking goes and what could/should be possible is outlined
+  in [design proposal#009](https://github.com/kroxylicious/design/blob/main/proposals/009-authorizer.md)
 
 ### Authorizer Filter
 
-We've added a new Authorizer Filter that can authorize Topic operations using the same semantics as Kafka own Authorization API. This allows you to enforce authorizations rules at the proxy.
+We've added a new Authorizer Filter that can authorize Topic operations using the same semantics as Kafka own
+Authorization API. This allows you to enforce authorizations rules at the proxy.
 
 ### Azure KMS integration for Record Encryption