Update example conf for supabase to use dedicated secret

sealed_secrets/README.md

@@ -7,7 +7,7 @@ helm repo add sealed-secrets https://bitnami-labs.github.io/sealed-secrets
 ```
 
 ```console
-helm install sealed-secrets sealed-secrets/sealed-secrets -f helm/values
+helm install sealed-secrets sealed-secrets/sealed-secrets -f helm/values.yml
 ```
 
 2. Create a secret
@@ -29,12 +29,24 @@ echo -n "MySecret" | kubeseal --raw --name <secret-name> \
     -n <namespace>
 ```
 
+OR
+
+```
+cat <file> | kubeseal -n <namespace> -o yaml
+```
+
 3. Validate encrypted data
 
 ```
 cat <mysealedsecretfile.yaml> | kubeseal --validate --controller-name=sealed-secrets --controller-namespace=<namespace>
 ```
 
+OR
+
+```
+kubectl kustomize | yq '. | select(.kind == "SealedSecret")' --yaml-output | kubeseal --validate --controller-name=sealed-secrets --controller-namespace=<namespace>
+```
+
 4. Check status of sealed secret
 
 ```