DOCSP-18006 Add behavior section to cursor pretty page

source/reference/method/cursor.pretty.txt

@@ -19,14 +19,24 @@ Definition
    .. include:: /includes/fact-mongosh-shell-method.rst
 
 
-   Configures the cursor to display results in an easy-to-read format.
+   Configures the cursor to display results in a format that 
+   is easy to read.
 
    The :method:`~cursor.pretty()` method has the following prototype form:
 
    .. code-block:: javascript
 
       db.collection.find(<query>).pretty()
 
+
+Behavior
+--------
+
+The :method:`~cursor.pretty()` method:
+
+- Does not change the output format in :binary:`~bin.mongosh`.
+- Changes the output format in the :ref:`legacy mongo shell<mongo>`.
+
 Examples
 --------
 
@@ -48,7 +58,7 @@ By default, :method:`db.collection.find()` returns data in a dense format:
    { "_id" : ObjectId("54f612b6029b47909a90ce8d"), "title" : "A Tale of Two Cities", "text" : "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness...", "authorship" : "Charles Dickens" }
 
 By using :method:`cursor.pretty()` you can set the cursor to return data in a
-format that is easier for humans to parse:
+format that is easier to read:
 
 .. code-block:: javascript