Every connector should provide more information to the user about it's functionality and the service it's connecting to. As an example:

https://github.com/apache/camel-kafka-connector/blob/master/docs/modules/ROOT/pages/connectors/camel-master-kafka-source-connector.adoc

As a user I'd like to quickly find answer for these questions:

What does this connector do?

Where can I find more? (links to camel docs, service docs or examples)

What's the minimal configuration?

Preferably Datatypes or schemas used in this connector.

In case of more complex connectors like elasticsearch: what different operations does it support? How can I configure them?