Add dockerhub link to badges

Author: paulbouwer

README.md

@@ -1,6 +1,6 @@
 # Hello Kubernetes!
 
-![Docker Image Version (latest by date)](https://img.shields.io/docker/v/paulbouwer/hello-kubernetes) ![Docker Image Size (latest by date)](https://img.shields.io/docker/image-size/paulbouwer/hello-kubernetes) ![Docker Pulls](https://img.shields.io/docker/pulls/paulbouwer/hello-kubernetes)
+[![Docker Image Version (latest by date)](https://img.shields.io/docker/v/paulbouwer/hello-kubernetes)](https://hub.docker.com/repository/docker/paulbouwer/hello-kubernetes) [![Docker Image Size (latest by date)](https://img.shields.io/docker/image-size/paulbouwer/hello-kubernetes)](https://hub.docker.com/repository/docker/paulbouwer/hello-kubernetes) [![Docker Pulls](https://img.shields.io/docker/pulls/paulbouwer/hello-kubernetes)](https://hub.docker.com/repository/docker/paulbouwer/hello-kubernetes)
 
 This container image can be deployed on a Kubernetes cluster. When accessed via a web browser on port `8080`, it will display: