(DOCSP-33492-60) Backporting. (#5260)

* (DOCSP-33492-60) Backporting.

* (DOCSP-33492-60)

Author: lmkerbey-mdb

source/includes/steps-admin-add-blockstore.yaml

@@ -82,6 +82,11 @@ content: |
          <connections-connection-options>` for the MongoDB instance.
          This field supports unescaped values only.
 
+         You must provide a value for the ``authMechanism`` option to
+         set your authentication method. For more information about
+         authentication options for connection strings, see 
+         :ref:`connection-string-auth-options`.
+
          For proper syntax, see :manual:`Connection String URI
          Format </reference/connection-string>` in the MongoDB manual.
 

source/includes/steps-admin-add-oplogstore.yaml

@@ -82,6 +82,11 @@ content: |
           <connections-connection-options>` for the MongoDB instance.
           This field supports unescaped values only.
 
+          You must provide a value for the ``authMechanism`` option to
+          set your authentication method. For more information about
+          authentication options for connection strings, see 
+          :ref:`connection-string-auth-options`.
+          
           For proper syntax and examples, see 
           :manual:`Connection String URI
           Format </reference/connection-string>` in the MongoDB manual.