[REQUEST]: Kafka output configuraton docs needs more information regarding the dynamic topic syntax.

[Supplementing]

Description

While working on 212422, we realized that the docs lack coverage in using more than one formatted item in the string. As of now, the docs show things like %{[fields.log_topic]}, but as we can accept more than that, such as %{[data_stream.type]}-%{[data_stream.dataset]}-%{[data_stream.namespace]}, the docs should reflect accordingly to aide users in understanding what is possible when entering a dynamic topic.

Resources

212422

206194

Collaboration

The documentation team will investigate the issue and create the initial content.

Point of contact.

Main contact: @elastic/fleet

Stakeholders: @elastic/fleet

[kilfoyle]

@Supplementing I hope you don't mind if I transfer this to the elastic/beats repo. The 'ingest-docs' repo is for the Fleet & Elastic Agent guide.