Update Readme

README.md

@@ -1,11 +1,17 @@
 # kubedec
+[![Build Status](https://travis-ci.com/satishkumarsk/kubedec.svg?branch=master)](https://travis-ci.com/satishkumarsk/kubedec)
+
 The cli will decrypt the encrypted yaml generated by sealed secrets using kubeseal  https://github.com/bitnami-labs/sealed-secrets
 
 Descrption:
  Its hard to view the encrypted yaml once sealed using kubeseal . This CLI allows to decrypt the yaml and validate the encrypted values incase you need
 
+To get master key
+```bash
+$ kubectl get secret -n kube-system sealed-secrets-key -o yaml >master.key
+```
 
-## NOTE: This is the controller's public + private key and should be kept really safe!!!!!!!
+## NOTE: master key is the controller's public + private key and should be kept really safe!!!