Add documentation

kubernetes/README.md

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+# Usage with minikube
+
+First of all start minikube on your machine:
+```sh
+minikube start
+```
+
+Build your Docker image, using the Minikube Docker daemon:
+```sh
+eval $(minikube docker-env)
+docker build -t humanconnection/backend:edge .
+```
+
+check that the image is in Minikube’s Docker registry:
+```sh
+minikube ssh docker images 
+```
+
+Now change into directory kubernetes and create services and deployments:
+```sh
+cd kubernetes
+
+kubectl create -f backend-deployment.yaml neo4j-deployment.yaml neo4j-data-persistentvolumeclaim.yaml
+
+# expose the backend deployment
+kubectl expose backend hello-node --type=LoadBalancer
+
+# and create the services
+kubectl create -f backend-service.yaml neo4j-service.yaml
+```
+
+You can see the backend in action with
+```sh
+minikube service backend
+```
+
+
+