K8 usecases (#355)

* Changes for chaostoolkit

workflows/k8-pod-delete/Readme.md

@@ -0,0 +1,9 @@
+# This explain how you can execute the argo work flow, 
+### Assumption is that you have installed the litmus - https://docs.litmuschaos.io/docs/getstarted/ 
+### Assumption is that you have install argo work flow on this cluster - https://github.com/litmuschaos/chaos-workflows#getting-started 
+### This execution will happen on your namespace and won't impact outside it
+### Please ensure you have enough pods for this namespace
+- Apply rbac for argo - `kubectl apply -f rbac-argo-service.yaml`
+- Execute experiments for k8 - `argo submit workflow.yaml`
+
+