Lacks a label for a Secret

Needs to add "konghq.com/secret: true" for the Secret definition

Author: jeromeguillaume

app/_how-tos/operator-konnect-getstarted-authentication.md

@@ -75,6 +75,7 @@ metadata:
   namespace: kong
   labels:
     konghq.com/credential: konnect
+    konghq.com/secret: true
 stringData:
   token: "'$KONNECT_TOKEN'"' | kubectl apply -f -
 ```