fix: Small typo in the 'templateFrom' guide (#2912)

Signed-off-by: Petter Abrahamsson <pabraham@redhat.com>

docs/snippets/template-v2-from-secret.yaml

@@ -47,7 +47,7 @@ spec:
           items:
           - key: config.yaml
             templateAs: Values
-          - key: generated
+          - key: templated
             templateAs: KeysAndValues
       - target: Annotations
         configMap: