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/AdminCreateShipment.yaml

@@ -1,15 +1,15 @@
 type: object
-description: SUMMARY
+description: The shipment's details.
 x-schemaName: AdminCreateShipment
 required:
   - labels
 properties:
   labels:
     type: array
-    description: The fulfillment's labels.
+    description: The shipment's labels.
     items:
       type: object
-      description: The label's labels.
+      description: A shipment label's details.
       required:
         - tracking_number
         - tracking_url
@@ -22,8 +22,8 @@ properties:
         tracking_url:
           type: string
           title: tracking_url
-          description: The label's tracking url.
+          description: The label's tracking URL.
         label_url:
           type: string
           title: label_url
-          description: The label's label url.
+          description: The label's URL.