sealed_secrets: Add more tips

sealed_secrets/README.md

@@ -13,16 +13,30 @@ helm install sealed-secrets sealed-secrets/sealed-secrets -f helm/values
 2. Create a secret
 
 ```console
-kubectl create secret generic sealed-test-secret --dry-run=client --from-env-file=secrets/mysecrets.env -o yaml | kubeseal \
+kubectl create secret generic <secret-name> --dry-run=client --from-env-file=<myfile.env> -o yaml | kubeseal \
     --controller-name=sealed-secrets \
-    --controller-namespace=default \
-    --format yaml
+    --controller-namespace=<namespace> \
+    --format yaml \
+    -n <namespace>
 ```
 
 OR
 
 ```console
-echo -n "MySecret" | kubeseal --raw --name sealed-test-secret \
+echo -n "MySecret" | kubeseal --raw --name <secret-name> \
     --controller-name=sealed-secrets \
-    --controller-namespace=default
+    --controller-namespace=<namespace> \
+    -n <namespace>
+```
+
+3. Validate encrypted data
+
+```
+cat <mysealedsecretfile.yaml> | kubeseal --validate --controller-name=sealed-secrets --controller-namespace=<namespace>
+```
+
+4. Check status of sealed secret
+
+```
+kubectl describe sealedsecrets.bitnami.com/<secret-name> -n <namespace>
 ```