chore(docs): Generated API Reference (#4706)

Co-authored-by: olivermrbl <olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <shahednasser@gmail.com>

docs/api/admin/components/schemas/CustomerGroup.yaml

@@ -1,5 +1,7 @@
 title: Customer Group
-description: Represents a customer group
+description: >-
+  A customer group that can be used to organize customers into groups of similar
+  traits.
 type: object
 required:
   - created_at
@@ -18,17 +20,15 @@ properties:
     type: string
     example: VIP
   customers:
-    description: >-
-      The customers that belong to the customer group. Available if the relation
-      `customers` is expanded.
+    description: The details of the customers that belong to the customer group.
     type: array
+    x-expandable: customers
     items:
       type: object
   price_lists:
-    description: >-
-      The price lists that are associated with the customer group. Available if
-      the relation `price_lists` is expanded.
+    description: The price lists that are associated with the customer group.
     type: array
+    x-expandable: price_lists
     items:
       type: object
   created_at:
@@ -50,3 +50,7 @@ properties:
     type: object
     example:
       car: white
+    externalDocs:
+      description: Learn about the metadata attribute, and how to delete and update it.
+      url: >-
+        https://docs.medusajs.com/development/entities/overview#metadata-attribute