DOCSP-18532 restored document oplogreplay (mongodb#65)

Co-authored-by: jason-price-mongodb <jshfjghsdfgjsdjh@aolsdjfhkjsdhfkjsdf.com>

Author: jason-price-mongodb

source/mongorestore.txt

@@ -730,6 +730,16 @@ Options
    files in the ``dump/local`` directory, :program:`mongorestore` restores them like
    normal collections.
 
+   The following message in the oplog replay output shows the number of
+   inserts before the oplog replay. It does not include inserts
+   performed during the replay.
+
+   .. code-block:: sh
+      :copyable: false
+
+      0 document(s) restored successfully. 0 document(s) failed to
+      restore.
+   
    For an example of :option:`--oplogReplay`, see :ref:`backup-restore-oplogreplay`.
 
    .. note::