DOCSP-40099: Add note about client.connect() (#894)

(cherry picked from commit 6ab9caa)

Author: mcmorisi

source/fundamentals/connection/connect.txt

@@ -95,6 +95,13 @@ verify that the connection is successful:
 .. literalinclude:: /code-snippets/connection/stable-api-connect.js
    :language: javascript
 
+.. note::
+
+   The {+driver-short+} automatically calls the ``MongoClient.connect()``
+   method when using the client to perform CRUD operations on your MongoDB deployment.
+   Call the ``MongoClient.connect()`` method explicitly if you want to verify that the
+   connection is successful.
+
 To learn more about the Stable
 API feature, see the :ref:`{+stable-api+} page <nodejs-stable-api>`.