diff --git a/examples/k8s/README.md b/examples/k8s/README.md
index 2a0fc93..f5de8aa 100644
--- a/examples/k8s/README.md
+++ b/examples/k8s/README.md
@@ -2,25 +2,25 @@
 Create config File
 
 ``` bash
-cp ../../config-example.json config.js
+cp ../../config-example.json config.json
 ```
 
-Edit config.json (vim, nvim, nano... )
+Edit config.jsonon (vim, nvim, nano... )
 ``` bash
-${EDITOR} config.js
+${EDITOR} config.json
 ```
 
 Create config file as Secret.
 
 ``` bash
-kubectl create secret generic config-cloudflare-ddns --from-file=config.js --dry-run=client -oyaml -n ddns > config-cloudflare-ddns-Secret.yaml
+kubectl create secret generic config-cloudflare-ddns --from-file=config.json --dry-run=client -oyaml -n ddns > config-cloudflare-ddns-Secret.yaml
 ```
 
 apply this secret
 
 ``` bash
 kubectl apply -f config-cloudflare-ddns-Secret.yaml
-rm config.js # recomended Just keep de secret on Kubernetes Cluster
+rm config.json # recomended Just keep de secret on Kubernetes Cluster
 ```
 
 apply this Deployment