Update cheatsheet.md

adding example for decoding secret ".data" without relying on external CLI tools

content/en/docs/reference/kubectl/cheatsheet.md

@@ -194,6 +194,9 @@ kubectl get pods --show-labels
 JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}' \
  && kubectl get nodes -o jsonpath="$JSONPATH" | grep "Ready=True"
 
+# Output decoded secrets without external tools
+kubectl get secret ${secret_name} -o go-template='{{range $k,$v := .data}}{{$k}}={{$v|base64decode}}{{"\n"}}{{end}}'
+
 # List all Secrets currently in use by a pod
 kubectl get pods -o json | jq '.items[].spec.containers[].env[]?.valueFrom.secretKeyRef.name' | grep -v null | sort | uniq