Merge pull request hotwax#1461 from hotwax/Vidhan2104-patch-1

Update SUMMARY to fix a broken link

Author: Shreyaakothari

documents/additional-integrations/retailpro/SUMMARY.md

@@ -2,15 +2,15 @@
 
 * [Introduction](README.md)
 
-* [Inventory Sync](Flows/Inventory/inventory-sync.md)
-  * [Challenges](Flows/Inventory/challenges-in-inventory-sync.md)
+* [Inventory Sync](flows/inventory/inventory-sync.md)
+  * [Challenges](flows/inventory/challenges-in-inventory-sync.md)
   * [Technical Workflow](./flows/inventory/technical-workflow.md)
 
 * [Order Sync](./flows/order/README.md)
-  * [Technical Workflow of Invoicing from Single Location](Flows/Order/workflow-of-invoice-from-single-location.md)
-  * [Technical Workflow of Invoicing from Multiple Location](Flows/Order/workflow-of-invoice-from-multiple-location.md)
+  * [Technical Workflow of Invoicing from Single Location](flows/order/workflow-of-invoice-from-single-location.md)
+  * [Technical Workflow of Invoicing from Multiple Location](flows/order/workflow-of-invoice-from-multiple-location.md)
 
 * [Send Sale Order](./flows/sendsale-order/README.md)
   * [Technical Workflow](./flows/sendsale-order/technical-workflow.md)
 
-* [Returns](./flows/returns/README.md)
+* [Returns](./flows/returns/README.md)