DOCSP-24227 adding insert to literal example (#7107)

Author: ltran-mdb2

source/reference/operator/aggregation/literal.txt

@@ -102,8 +102,10 @@ A ``books`` collection has the following documents:
 
 .. code-block:: javascript
 
-   { "_id" : 1, "title" : "Dracula", "condition": "new" }
-   { "_id" : 2, "title" : "The Little Prince", "condition": "new" }
+   db.books.insertMany([
+      { "_id" : 1, "title" : "Dracula", "condition": "new" },
+      { "_id" : 2, "title" : "The Little Prince", "condition": "new" }
+   ])
 
 The :expression:`{ $literal: 1 } <$literal>` expression returns a new
 ``editionNumber`` field set to the value ``1``:
@@ -117,6 +119,7 @@ The :expression:`{ $literal: 1 } <$literal>` expression returns a new
 The operation results in the following documents:
 
 .. code-block:: javascript
+   :copyable: false
 
    { "_id" : 1, "title" : "Dracula", "editionNumber" : 1 }
    { "_id" : 2, "title" : "The Little Prince", "editionNumber" : 1 }