Added Pulsar in Action book

README.md

@@ -705,6 +705,7 @@ A curated list of Microservice Architecture related principles and technologies.
 - [Microservice Patterns](https://www.manning.com/books/microservice-patterns) - Teaches how to build applications with the microservice architecture and how to refactor a monolithic application to a microservices.
 - [Microservices from Theory to Practice](http://www.redbooks.ibm.com/abstracts/sg248275.html?Open) - Microservices from Theory to Practice: Creating Applications in IBM Bluemix Using the Microservices Approach. IBM Redbooks publication.
 - [Migrating to Cloud Native Application Architectures](http://pivotal.io/platform/migrating-to-cloud-native-application-architectures-ebook) - This O’Reilly report defines the unique characteristics of cloud native application architectures such as microservices and twelve-factor applications.
+- [Pulsar in Action](https://www.manning.com/books/pulsar-in-action) - A practical book about developing microservice-based applications using Apache Pulsar by Manning Press.
 - [Testing Microservices with Mountebank](https://www.manning.com/books/testing-microservices-with-mountebank) - Provides a testing strategy using mountebank for service virtualization, promoting independent releases of Microservices
 - [The Art of Scalability](http://theartofscalability.com/) - The Art of Scalability: Scalable Web Architecture, Processes, and Organizations for the Modern Enterprise. Martin L. Abbott, Michael T. Fisher.
 - [The New Stack eBook Series](http://thenewstack.io/ebookseries/) - A Comprehensive Overview of the Docker and Container Ecosystem.