replace manifest deployment with a helm local path install

Kubernetes-Backups-and-Recovery-with-K8up.md

@@ -132,8 +132,7 @@ PR ref: https://github.com/seaweedfs/seaweedfs/pull/5034
 4. Deploy via Helm
 
    ```bash
-   helm template . -f test-values.yaml > manifests.yaml
-   kubectl apply -f manifests.yaml
+   helm install seaweedfs . -f test-values.yaml --wait
    ```
 
 5. Expose the S3 endpoint 
@@ -496,8 +495,7 @@ PR ref: https://github.com/seaweedfs/seaweedfs/pull/5034
     - Deploy via Helm
   
       ```bash
-      helm template . -f restore-values.yaml > manifests.yaml
-      kubectl apply -f manifests.yaml
+      helm install seaweedfs . -f restore-values.yaml --wait
       ```
 
 7. Update your alias for your server: