added hello world example for kubernetes

src/gok8s/Dockerfile

+FROM golang:1.16
+
+WORKDIR /go/src/app
+COPY main.go .
+
+CMD ["go", "run", "main.go"]
\ No newline at end of file

src/gok8s/README.md

+## GoK8S
+
+1. Ensure that Docker Desktop is running with Kubernetes enabled
+   
+2. Build the docker image
+
+        # docker build . -t turngeek/gok8s
+
+3. Run the pod on Kubernetes
+
+        # kubectl apply -f gok8s.yaml
+
+4. Run the pod on Kubernetes

src/gok8s/gok8s.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: gok8s
+spec:
+  containers:
+    - name: gok8s
+      image: turngeek/gok8s
+      imagePullPolicy: Never
+  restartPolicy: Never
\ No newline at end of file

src/gok8s/main.go

+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello World!")
+}