(DOCSP-11978): Allow >=4.0 backing databases if scram-sha is enabled (#381)

* (DOCSP-11978): Allow >=4.0 backing databases if scram-sha is enabled

* (DOCSP-11978): minor cleanup and copy review feedback

Author: melissamahoney-mongodb

source/includes/admonitions/fact-backing-db-auth.rst

@@ -4,9 +4,13 @@ You cannot enable other authentication mechanisms.
 If you enable ``SCRAM`` authentication on the oplog database, you
 must: 
 
-- Specify a MongoDB version earlier than v4.0 in the oplog database 
-  resource definition.
 - Create a MongoDB user resource to connect |onprem| to the oplog 
   database.
 - Specify the :opsmgrkube:`~spec.backup.opLogStores.mongodbUserRef.name`
   of the user in the |onprem| resource definition.
+
+.. note:: 
+
+   If you deploy |onprem| 4.2 with ``SCRAM`` authentication enabled, you 
+   must specify a MongoDB version earlier than than 4.0 in the oplog 
+   :ref:`database resource definition <k8s-specification>`. 

source/reference/k8s-operator-om-specification.txt

@@ -377,13 +377,17 @@ Optional |onprem| Resource Settings
    If you enable ``SCRAM`` authentication on the blockstore database,
    you must:
 
-   - Specify a MongoDB version earlier than v4.0 in the blockstore 
-     database resource definition.
    - Create a MongoDB user resource to connect |onprem| to the
      blockstore database.
    - Specify the :opsmgrkube:`~spec.backup.blockStores.mongodbUserRef.name`
      of the user in the |onprem| resource definition.
 
+   .. note:: 
+
+      If you deploy |onprem| 4.2, you must specify a MongoDB version
+      earlier than than 4.0 in the blockstore :ref:`database resource
+      definition <k8s-specification>`.
+
    .. include:: /includes/admonitions/watch-backup-resources.rst
 
 .. opsmgrkube:: spec.backup.blockStores.mongodbUserRef.name
@@ -585,14 +589,19 @@ Optional |onprem| Resource Settings
 
    If you enable ``SCRAM`` authentication on this database, you must:
 
-   - Specify a MongoDB version earlier than v4.0 in the database
-     resource definition.
    - Create a MongoDB user resource to connect |onprem| to the
      database.
    - Specify the
      :opsmgrkube:`~spec.backup.s3Stores.mongodbUserRef.name` of the
      user in the |onprem| resource definition.
 
+   .. note:: 
+
+      If you deploy |onprem| 4.2, you must specify a MongoDB version
+      earlier than than 4.0 in the :ref:`resource definition
+      <k8s-specification>` for the database that stores the metadata for
+      the |s3| snapshot store.
+
    .. important::
 
       Once specified, do not edit the name of the |s3| snapshot store.