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site/content/en/docs/contrib/addons.en.md

@@ -74,7 +74,7 @@ To see other examples, see the [addons commit history](https://github.com/kubern
 
 If your addon contains a NodePort Service, please add the `kubernetes.io/minikube-addons-endpoint: <addon name>` label, which is used by the  `minikube addons open` command:
 
-```
+```yaml
 apiVersion: v1
 kind: Service
 metadata: