chore(docs): Generated API Reference (#2882)

Co-authored-by: olivermrbl <olivermrbl@users.noreply.github.com>

docs/api/admin/paths/draft-orders_{id}_line-items.yaml

@@ -14,28 +14,8 @@ post:
     content:
       application/json:
         schema:
-          type: object
-          required:
-            - quantity
-          properties:
-            variant_id:
-              description: The ID of the Product Variant to generate the Line Item from.
-              type: string
-            unit_price:
-              description: The potential custom price of the item.
-              type: integer
-            title:
-              description: The potential custom title of the item.
-              type: string
-              default: Custom item
-            quantity:
-              description: The quantity of the Line Item.
-              type: integer
-            metadata:
-              description: >-
-                The optional key-value map with additional details about the
-                Line Item.
-              type: object
+          $ref: >-
+            ../components/schemas/AdminPostDraftOrdersDraftOrderLineItemsReq.yaml
   x-codeSamples:
     - lang: JavaScript
       label: JS Client
@@ -59,7 +39,7 @@ post:
             type: object
             properties:
               draft_order:
-                $ref: ../components/schemas/draft-order.yaml
+                $ref: ../components/schemas/DraftOrder.yaml
     '400':
       $ref: ../components/responses/400_error.yaml
     '401':