Docs cleanup
Docs cleanup

Apply changes from a previous commit to the proper docs file.

See the prior relevant commit at the URL below:

https://github.com/spring-cloud/spring-cloud-stream-binder-kafka/commit/af5778d157f54520cdeb71cc5c109b58dd33793b

Fixes https://github.com/spring-cloud/spring-cloud-stream-binder-kafka/issues/1032

garyrussell/spring-cloud-stream,spring-cloud/spring-cloud-stream,garyrussell/spring-cloud-stream,garyrussell/spring-cloud-stream,spring-cloud/spring-cloud-stream,spring-cloud/spring-cloud-stream