Adjust readme to the later refactorings.
Adjust readme to the later refactorings.

njam/pulsar-rest-api,vogdb/pulsar-rest-api,cargomedia/pulsar-rest-api,njam/pulsar-rest-api,vogdb/pulsar-rest-api,cargomedia/pulsar-rest-api,njam/pulsar-rest-api,vogdb/pulsar-rest-api,cargomedia/pulsar-rest-api,cargomedia/pulsar-rest-api,njam/pulsar-rest-api