Add CI/CD with Docker and Kubernetes Book (#6465)

* Add CI/CD with Docker and Kubernetes Book

* Update free-programming-books-subjects.md

* Update books/free-programming-books-subjects.md

Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

books/free-programming-books-subjects.md

@@ -223,6 +223,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 
 ### Containers
 
+* [CI/CD with Docker and Kubernetes Book](https://github.com/semaphoreci/book-cicd-docker-kubernetes) - Marko Anastasov, Jérôme Petazzoni, Pablo Tom F. Zavalia, SemaphoreCI (PDF, EPUB, Kindle)
 * [Docker Jumpstart](http://odewahn.github.io/docker-jumpstart/) - Andrew Odewahn
 * [Kubernetes Deployment & Security Patterns](https://resources.linuxfoundation.org/LF+Projects/CNCF/TheNewStack_Book2_KubernetesDeploymentAndSecurityPatterns.pdf) - Alex Williams (PDF)
 * [Kubernetes for Full-Stack Developers](https://www.digitalocean.com/community/curriculums/kubernetes-for-full-stack-developers) - Jamon Camisso, Hanif Jetha, Katherine Juell (PDF, EPUB)