docs: update modules chapter in basics (#9452)

* docs: update modules chapter in basics

* address PR feedback

www/apps/resources/app/recipes/integrate-ecommerce-stack/page.mdx

@@ -28,7 +28,7 @@ To integrate an external system, such as an ERP, into your Medusa application, c
 Then, resolve the module's main service in other resources, such as API routes or workflows, to perform actions in the external system.
 
 <Card
-  href="!docs!/basics/modules-and-services"
+  href="!docs!/basics/modules"
   title="Create a Module"
   text="Learn how to create a module in Medusa."
   icon={AcademicCapSolid}
@@ -101,7 +101,7 @@ export const serviceHighlights = [
 
   <Note title="Tip">
 
-  You can store the product's ID in the external system using the `metadata` property of the `Product` data model in the Product Module. Alternatively, you can create a [data model](!docs!/basics/data-models) in your module to store data related to the external system.
+  You can store the product's ID in the external system using the `metadata` property of the `Product` data model in the Product Module. Alternatively, you can create a [data model](!docs!/basics/modules#1-create-data-model) in your module to store data related to the external system.
 
   </Note>