Documentation: Publish app from scratch to AWS ECR + AppRunner using Docker image (dockerfile.minimal, build-simple.sh, docker-build.sh, run-docker.sh)

[fernando-plank]

Please generate a documentation teaching how to publish this app from scratch to aws ECR + AppRunner using a docker image, in the project we're using the dockerfile.minimal to generate the image and using the build-simple.sh, and then docker-build.sh, and then run-docker.sh.