(DOCSP-36840) Updates deletion protection description for 2.1. (#23)

Author: erabil-mdb

source/index.txt

@@ -136,12 +136,12 @@ Revert New Deletion Protection Default
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 You can control the new deletion protection behavior using the 
-``ObjectDeletionProtection`` and ``SubobjectDeletionProtection`` flags or the 
-``OBJECT_DELETION_PROTECTION`` and ``SUBOBJECT_DELETION_PROTECTION`` environment 
-variables in the |k8s| 
+``--object-deletion-protection`` flag or the 
+``OBJECT_DELETION_PROTECTION`` environment 
+variable in the |k8s| 
 :github:`Deployment resource <mongodb/mongodb-atlas-kubernetes/blob/main/deploy/all-in-one.yaml#L4028>` that you applied when installing |ak8so|. 
-These flags and environment variables all default to ``true``. 
-Set to ``false`` to revert to the behavior prior to |ak8so| 2.0. 
+This flag and environment variable all default to ``true``. 
+Set to ``false`` to revert to the behavior prior to |ak8so| 2.1. 
 
 You can also control which behavior to use for individual custom resources using 
 the ``atlas-resource-policy`` annotations described in :ref:`ak8so-annotations`.