changes in readme
[1] Install the rabbitmq server as mentioned in https://www.rabbitmq.com/install-debian.html
-[2] Copy {WSO2SPHome}/samples/artifacts/0039/rabbitmq-sample.siddhi file to {WSO2SPHome}/deployment/siddhi-files.
+[2] Copy {WSO2SPHome}/samples/artifacts/0041/rabbitmq-sample.siddhi file to {WSO2SPHome}/deployment/siddhi-files.
[3] Navigate to {WSO2SPHome}/bin and start the server using ./worker.sh
[4] Publish below text message to RABBITMQ_SAMPLE exchange in the RabbitMQ broker.
<events>
