MT-18278 Fix flows link from CM promo builder (#330)

Author: dazadep

docs/commerce-manager/promotions-builder/creating-a-promotion-in-promotions-builder.mdx

@@ -204,7 +204,7 @@ You can duplicate an existing promotion and reuse its details as required in a n
     The duplicated promotion opens. Make the necessary updates, then click **Create Promotion** to save the new promotion.
 
 ## Editing Custom Fields in a Promotion
-In order to use custom fields in Promotions Builder, you need to create flows in the store. See [Creating FLows](/docs/commerce-manager/flows/flows) for how to create flows. The **slug** value for promotions builder is **rule-promotions**.
+In order to use custom fields in Promotions Builder, you need to create flows in the store. See [Creating FLows](/docs/commerce-manager/flows) for how to create flows. The **slug** value for promotions builder is **rule-promotions**.
 Once you have created the flows and field, then you can edit the custom fields in promotions builder.
 
 1. In the promotions builder editing page, locate the **Custom Fields** at the bottom of page.
@@ -215,4 +215,4 @@ Once you have created the flows and field, then you can edit the custom fields i
 
 ## Related Resources
 
-- [Rule Promotions API](/docs/rule-promotions/overview)
+- [Rule Promotions API](/docs/promotions-builder/promotions-builder-api/promotions-builder-api-overview)