Fix link to Toxiproxy docs from Kafka docs (#7684)

Author: alex-sherwin

docs/modules/kafka.md

@@ -46,7 +46,7 @@ See the [versions interoperability matrix](https://docs.confluent.io/platform/cu
 
 There are scenarios where additional listeners are needed because the consumer/producer can be in another
 container in the same network or a different process where the port to connect differs from the default 
-exposed port `9093`. E.g [Toxiproxy](../../docs/modules/toxiproxy.md).
+exposed port `9093`. E.g [Toxiproxy](../../modules/toxiproxy/).
 
 <!--codeinclude-->
 [Register additional listener](../../modules/kafka/src/test/java/org/testcontainers/containers/KafkaContainerTest.java) inside_block:registerListener