docs: tax provider updates for next release (#12431)

* docs: tax provider updates for next release

* change images

* fix vale error

* fix vale errors

* generate

www/apps/resources/app/commerce-modules/tax/tax-region/page.mdx

@@ -18,4 +18,24 @@ A tax region, represented by the [TaxRegion data model](/references/tax/models/T
 
 Tax regions can inherit settings and rules from a parent tax region.
 
-Each tax region has tax rules and a tax provider.
+---
+
+## Tax Rules in a Tax Region
+
+Tax rules define the tax rates and behavior within a tax region. They specify:
+
+- The tax rate percentage.
+- Which products the tax applies to.
+- Other custom rules to determine tax applicability.
+
+Learn more about tax rules in the [Tax Rates and Rules](../tax-rates-and-rules/page.mdx) guide.
+
+---
+
+## Tax Provider
+
+Each tax region can have a default tax provider. The tax provider is responsible for calculating the tax lines for carts and orders in that region.
+
+You can use Medusa's default tax provider or create a custom one, allowing you to integrate with third-party tax services or implement your own tax calculation logic.
+
+Learn more about tax providers in the [Tax Provider](../tax-provider/page.mdx) guide.