Remove trailing space

Removed trailing space from line 154.

Author: d05dev

content/en-us/production/monetization/developer-products.md

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 ### Outside your experience
 
-To enable developer product purchases outside of your experience, you must work with the `Class.MarketplaceService.ProcessReceipt|ProcessReceipt` API. 
+To enable developer product purchases outside of your experience, you must work with the `Class.MarketplaceService.ProcessReceipt|ProcessReceipt` API.
 
 After a user purchases a developer item in the **Store** tab of your experience page, you must: