docs: added user guide for draft orders (#2198)

docs/content/user-guide/orders/index.md

@@ -13,24 +13,30 @@ When customers buy one or more products, their order appears on the Orders page.
 
 The Orders domain also contains draft orders. Draft orders are orders that you create from the Medusa admin. After you fill out the order and mark it paid, it’s transformed into an order that appears as part of the Orders list.
 
+---
+
 ## View List of Orders
 
 You can view the list of available orders in your ecommerce store by clicking on Orders from the sidebar menu.
 
 In the list, you can see order details such as the ID, date, customer, fulfillment and payment status, total, and the country of the shipping address.
 
+---
+
 ## View List of Draft Orders
 
 You can view the list of draft orders on the Orders page by clicking on the grey Drafts headline next to the Orders headline.
 
 In the list, you can see order details such as ID, the ID of the order the draft order belongs to, the date, the customer, and the status of the draft order.
 
+---
+
 ## Learn More About Orders
 
 - [Manage Order Details](./manage.mdx)
 - [Manage Order’s Payment](./payments.md)
-- [Manage Order’s Fulfillment](./fulfillments.md)
-- [Manage Draft Orders](./drafts.md)
+- [Manage Order’s Fulfillment](./fulfillments.mdx)
+- [Manage Draft Orders](./drafts.mdx)
 - [Manage Order Returns](./returns.md)
 - [Manage Order Claims](./claims.md)
 - [Manage Order Exchanges and Swaps](./swaps.md)