docs: improved commerce modules [5/5] (#9592)

- Improve remaining commerce modules
- Other: add a note about using methods of the modules' main services.

www/apps/resources/app/commerce-modules/tax/tax-calculation-with-provider/page.mdx

@@ -10,7 +10,7 @@ In this document, you’ll learn how tax lines are calculated and what a tax pro
 
 Tax lines are calculated and retrieved using the [getTaxLines method of the Tax Module’s main service](/references/tax/getTaxLines). It accepts an array of line items and shipping methods, and the context of the calculation.
 
-It returns the tax lines that are used to adjust the cart’s tax and grand totals.
+For example:
 
 ```ts
 const taxLines = await taxModuleService.getTaxLines(
@@ -37,7 +37,28 @@ const taxLines = await taxModuleService.getTaxLines(
 
 The context object is used to determine which tax regions and rates to use in the calculation. It includes properties related to the address and customer.
 
-The example above returns the tax lines based on the tax region for the United States.
+The example above retrieves the tax lines based on the tax region for the United States.
+
+The method returns tax lines for the line item and shipping methods. For example:
+
+```json
+[
+  {
+    "line_item_id": "cali_123",
+    "rate_id": "txr_1",
+    "rate": 10,
+    "code": "XXX",
+    "name": "Tax Rate 1"
+  },
+  {
+    "shipping_line_id": "casm_123",
+    "rate_id": "txr_2",
+    "rate": 5,
+    "code": "YYY",
+    "name": "Tax Rate 2"
+  }
+]
+```
 
 ---