Split and reorder some chapters in part 3

[ludelafo]

At the moment, the chapter 15 asks to update the CI/CD pipeline to containerize and publish the Docker image and to deploy the service on Kubernetes. My proposition would be to reorder some chapters and content to facilitate the comprehension of each step.

Actual order:

• Chapter 12 - Serve the model locally with BentoML
• Chapter 13 - Build and publish the model with BentoML and Docker
• Chapter 14 - Deploy and access the model on Kubernetes
• Chapter 15 - Continuous deployment of the model with the CI/CD pipeline

New order:

• Chapter 13 - Build and publish the model with BentoML and Docker locally
• Chapter 14 - Build and publish the model with BentoML and Docker in the CI/CD pipeline
• Chapter 16 - Deploy and access the model on Kubernetes locally
• Chapter 17 - Deploy and access the model on Kubernetes with the CI/CD pipeline