docs: add loyalty points guide (#12130)

* docs: add loyalty points guide

* remove og

www/apps/resources/app/how-to-tutorials/tutorials/product-reviews/page.mdx

@@ -46,7 +46,7 @@ Medusa doesn't provide product reviews out-of-the-box, but Medusa's framework fa
 
 You can follow this guide whether you're new to Medusa or an advanced Medusa developer.
 
-### Summary
+## Summary
 
 By following this tutorial, you'll learn how to:
 
@@ -187,7 +187,7 @@ The `Review` data model has the following properties:
 
 <Note>
 
-Learn more about defining data model properties in the [Property Types documentation](/learn/fundamentals/data-models/property-types).
+Learn more about defining data model properties in the [Property Types documentation](!docs!/learn/fundamentals/data-models/properties).
 
 </Note>