DOCSP-14364 updating CRUDInsert (#171)

* clarified examples on the page

Author: kyuan-mongodb

source/fundamentals/crud/write-operations/insert.txt

@@ -13,25 +13,28 @@ documents from a collection in your MongoDB database.
 Insert
 ------
 
-If you want to add new documents to a collection, you can use
-the ``insertOne()`` or the ``insertMany()`` method. These methods accept
+To add new documents to a collection, you can use
+the ``insertOne()`` or the ``insertMany()`` methods. These methods accept
 single or multiple documents, respectively. The driver automatically
 generates a unique ``_id`` field for documents unless specified.
 
-You can specify the document to be inserted by the ``insertOne()`` write
-operation in a JSON object as follows:
+The following examples use a collection called ``pizzaCollection``,
+which contains documents with the name and shape of a pizza.
+
+Insert a Document Example
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can specify a document in a JSON object as follows:
 
 .. code-block:: javascript
 
    const pizzaDocument = {
      name: "Neapolitan pizza",
-     shape: "round",
-     toppings: [ "San Marzano tomatoes", "mozzarella di bufala cheese" ],
+     shape: "round"
    };
 
-To insert the document into the collection reference ``pizzaCollection``,
-specify the document as the first parameter of your call to the
-``insertOne()`` method as shown below:
+To insert this document into ``pizzaCollection``, pass ``pizzaDocument``
+as the first parameter to the ``insertOne()`` method as shown below: 
 
 .. code-block:: javascript
 
@@ -47,20 +50,22 @@ You can print the number of documents inserted by accessing the
 For a runnable example, see the :doc:`insertOne() </usage-examples/insertOne>`
 usage example.
 
-You can specify the documents to be inserted by the ``insertMany()`` write
-operation in an array of JSON objects as follows:
+Insert Multiple Documents Example
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can specify multiple documents in an array of JSON objects as follows:
 
 .. code-block:: javascript
 
    const pizzaDocuments = [
      { name: "Sicilian pizza", shape: "square" },
      { name: "New York pizza", shape: "round" },
-     { name: "Grandma pizza", shape: "square" },
+     { name: "Grandma pizza", shape: "square" }
    ];
 
-To insert the array of documents into the collection reference
-``pizzaCollection``, specify the array as the first parameter of your call
-to the ``insertMany()`` method as shown below:
+To insert these documents into ``pizzaCollection``, pass
+``pizzaDocuments`` as the first parameter to the ``insertMany()`` method
+as shown below: 
 
 .. code-block:: javascript