chore(docs): Updated API Reference (v2) (#9148)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>

www/apps/api-reference/specs/admin/components/schemas/AdminCreateTaxRateRule.yaml

@@ -1,5 +1,5 @@
 type: object
-description: SUMMARY
+description: The tax rate rule's details.
 x-schemaName: AdminCreateTaxRateRule
 required:
   - reference
@@ -8,8 +8,10 @@ properties:
   reference:
     type: string
     title: reference
-    description: The tax rate's reference.
+    description: The name of a table in the database that this rule points to.
+    example: product_type
   reference_id:
     type: string
     title: reference_id
-    description: The tax rate's reference id.
+    description: The ID of a record in the table specified in reference.
+    example: ptype_123