新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件

learn/learn-kubernetes-master/kiamol/ch02/lab/README.md

@@ -0,0 +1,15 @@
+kubectl apply -f solution/deployment.yaml
+
+kubectl port-forward deploy/whoami 8080:80
+
+curl http://localhost:8080
+
+> "I'm whoami-687976f48b-tkxp9 running on Linux 4.19.76-linuxkit #1 SMP Thu Oct 17 19:31:58 UTC 2019"
+
+kubectl get pods -o custom-columns=NAME:metadata.name
+
+> whoami-68bf776fd-s6sr9
+
+kubectl exec deploy/whoami -- sh -c 'hostname'
+
+> whoami-687976f48b-tkxp9