DOCSP-24256 adding insert operation to food examples (#1639)

* DOCSP-24256 adding insert operation to examples

* DOCSP-24256 editing intro to example

Author: ltran-mdb

source/reference/operator/aggregation/strLenBytes.txt

@@ -110,18 +110,23 @@ Example
 Single-Byte and Multibyte Character Set
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-A collection named ``food`` contains the following documents:
+Create a ``food`` collection with the following documents:
 
 .. code-block:: javascript
 
-   { "_id" : 1, "name" : "apple" }
-   { "_id" : 2, "name" : "banana" }
-   { "_id" : 3, "name" : "éclair" }
-   { "_id" : 4, "name" : "hamburger" }
-   { "_id" : 5, "name" : "jalapeño" }
-   { "_id" : 6, "name" : "pizza" }
-   { "_id" : 7, "name" : "tacos" }
-   { "_id" : 8, "name" : "寿司" }
+   db.food.insertMany(
+    [
+       { "_id" : 1, "name" : "apple" },
+       { "_id" : 2, "name" : "banana" },
+       { "_id" : 3, "name" : "éclair" },
+       { "_id" : 4, "name" : "hamburger" },
+       { "_id" : 5, "name" : "jalapeño" },
+       { "_id" : 6, "name" : "pizza" },
+       { "_id" : 7, "name" : "tacos" },
+       { "_id" : 8, "name" : "寿司" }
+    ]
+   )
+
 
 The following operation uses the ``$strLenBytes`` operator to calculate
 the ``length`` of each ``name`` value:

source/reference/operator/aggregation/strLenCP.txt

@@ -73,18 +73,23 @@ Example
 Single-Byte and Multibyte Character Set
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-A collection named ``food`` contains the following documents:
+Create a ``food`` collection with the following documents:
 
 .. code-block:: javascript
 
-   { "_id" : 1, "name" : "apple" }
-   { "_id" : 2, "name" : "banana" }
-   { "_id" : 3, "name" : "éclair" }
-   { "_id" : 4, "name" : "hamburger" }
-   { "_id" : 5, "name" : "jalapeño" }
-   { "_id" : 6, "name" : "pizza" }
-   { "_id" : 7, "name" : "tacos" }
-   { "_id" : 8, "name" : "寿司" }
+   db.food.insertMany(
+    [
+       { "_id" : 1, "name" : "apple" },
+       { "_id" : 2, "name" : "banana" },
+       { "_id" : 3, "name" : "éclair" },
+       { "_id" : 4, "name" : "hamburger" },
+       { "_id" : 5, "name" : "jalapeño" },
+       { "_id" : 6, "name" : "pizza" },
+       { "_id" : 7, "name" : "tacos" },
+       { "_id" : 8, "name" : "寿司" }
+    ]
+   )
+
 
 The following operation uses the ``$strLenCP`` operator to calculate
 the ``length`` of each ``name`` value:

source/reference/operator/aggregation/substrBytes.txt

@@ -212,18 +212,23 @@ The operation returns the following results:
 Single-Byte and Multibyte Character Set
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-A collection named ``food`` contains the following documents:
+Create a ``food`` collection with the following documents:
 
 .. code-block:: javascript
 
-   { "_id" : 1, "name" : "apple" }
-   { "_id" : 2, "name" : "banana" }
-   { "_id" : 3, "name" : "éclair" }
-   { "_id" : 4, "name" : "hamburger" }
-   { "_id" : 5, "name" : "jalapeño" }
-   { "_id" : 6, "name" : "pizza" }
-   { "_id" : 7, "name" : "tacos" }
-   { "_id" : 8, "name" : "寿司sushi" }
+   db.food.insertMany(
+    [
+       { "_id" : 1, "name" : "apple" },
+       { "_id" : 2, "name" : "banana" },
+       { "_id" : 3, "name" : "éclair" },
+       { "_id" : 4, "name" : "hamburger" },
+       { "_id" : 5, "name" : "jalapeño" },
+       { "_id" : 6, "name" : "pizza" },
+       { "_id" : 7, "name" : "tacos" },
+       { "_id" : 8, "name" : "寿司sushi" }
+    ]
+   )
+
 
 The following operation uses the ``$substrBytes`` operator to create a three
 byte ``menuCode`` from the ``name`` value:

source/reference/operator/aggregation/substrCP.txt

@@ -157,18 +157,23 @@ The operation returns the following results:
 Single-Byte and Multibyte Character Set
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-A collection named ``food`` contains the following documents:
+Create a ``food`` collection with the following documents:
 
 .. code-block:: javascript
 
-   { "_id" : 1, "name" : "apple" }
-   { "_id" : 2, "name" : "banana" }
-   { "_id" : 3, "name" : "éclair" }
-   { "_id" : 4, "name" : "hamburger" }
-   { "_id" : 5, "name" : "jalapeño" }
-   { "_id" : 6, "name" : "pizza" }
-   { "_id" : 7, "name" : "tacos" }
-   { "_id" : 8, "name" : "寿司sushi" }
+   db.food.insertMany(
+    [
+       { "_id" : 1, "name" : "apple" },
+       { "_id" : 2, "name" : "banana" },
+       { "_id" : 3, "name" : "éclair" },
+       { "_id" : 4, "name" : "hamburger" },
+       { "_id" : 5, "name" : "jalapeño" },
+       { "_id" : 6, "name" : "pizza" },
+       { "_id" : 7, "name" : "tacos" },
+       { "_id" : 8, "name" : "寿司sushi" }
+    ]
+   )
+
 
 The following example uses the ``$substrCP`` operator to create a three
 byte ``menuCode`` from the ``name`` value: