DEVDOCS-6658 Replace placeholder values and fix issues in Store Operations documentation (#1189)

# [DEVDOCS-6658]

## What changed?
Replace placeholder values and fix issues in Store Operations
documentation

## Anything else?
No

[DEVDOCS-6658]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-6658?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: TomA-R

archive/store-operations/v2-products/v2-versus-v3.mdx

@@ -740,7 +740,7 @@ This will only create an option with no values added.
 **Add option values**
 `POST /v2/options/{option_id}/values`
 
-This will add values such as small, medium and large. Only one value at a time can be created. In this example it will take 3 seperate /POST requests to create all sizes.
+This will add values such as small, medium and large. Only one value at a time can be created. In this example it will take 3 separate /POST requests to create all sizes.
 
 ```json showLineNumbers copy
 {
@@ -926,7 +926,7 @@ They are not recommended for V3 products since they can be created at the varian
 **Request V2 Product Rules**
 `/v2/products/{product_id}/rules`
 
-* A complex rule can not be added without an option
+* A complex rule cannot be added without an option
 
 The example below add's a complex rule to increase the price by $5 if the checkbox is selected.
 

docs/store-operations/emails/object-reference/combined-order-status.yml

@@ -307,7 +307,7 @@ example:
       quantity: 1
       link: '#downloadable-link'         
     products:  
-      name: Test product 
+      name: "Sample Product" 
       sku: FA44 
       quantity: 11   
     tracking:              

docs/store-operations/emails/object-reference/data/invoice_email.json

@@ -12,7 +12,7 @@
     "shipping": {
       "methods": [],
       "address": {
-        "email": "test@gmail.com",
+        "email": "customer@example.com",
         "phone": "+112233445566",
         "first_name": "John",
         "last_name": "Wick",
@@ -163,7 +163,7 @@
     "billing": {
       "is_managed_by_amazon": false,
       "address": {
-        "email": "test@gmail.com",
+        "email": "customer@example.com",
         "phone": "+112233445566",
         "first_name": "John",
         "last_name": "Wick",

docs/store-operations/emails/object-reference/draft/combined_order_status_email.yml

@@ -208,7 +208,7 @@ Order Status Update:
               quantity: 1
               link: '#downloadable-link'         
           products:  
-              name: Test product 
+              name: "Sample Product" 
               sku: FA44 
               quantity: 11   
           tracking:              

docs/store-operations/emails/object-reference/draft/invoice_email.yml

@@ -386,7 +386,7 @@ Order:
         shipping: 
           methods: 
           address: 
-            email: 'test@gmail.com'
+            email: 'customer@example.com'
             phone: +112233445566
             first_name: John
             last_name: Wick
@@ -398,7 +398,7 @@ Order:
             address_lines: 
             custom_fields: 
         products: 
-            name: Test product name
+            name: "Sample Product"
             quantity: 2
             sku: SF42
             address_lines: 
@@ -436,7 +436,7 @@ Order:
         billing: 
           is_managed_by_amazon: false
           address:
-            email: 'test@gmail.com'
+            email: 'customer@example.com'
             phone: +112233445566
             first_name: John
             last_name: Wick

docs/store-operations/emails/object-reference/invoice.yml

@@ -569,7 +569,7 @@ examples:
     shipping: 
       methods: 
       address:
-        email: 'test@gmail.com'
+        email: 'customer@example.com'
         phone: +112233445566
         first_name: John
         last_name: Wick
@@ -581,7 +581,7 @@ examples:
         address_lines: 
         custom_fields: 
     products: 
-      - name: Test product name
+      - name: "Sample Product"
         quantity: 2
         sku: SF42
         address_lines: 
@@ -682,7 +682,7 @@ examples:
     billing: 
       is_managed_by_amazon: false
       address:
-        email: 'test@gmail.com'
+        email: 'customer@example.com'
         phone: +112233445566
         first_name: John
         last_name: Wick