Add step in drafting to get feedback from CSMs (#23946)

handbook/product-design/README.md

@@ -102,6 +102,8 @@ The EM is responsible for moving the user story to the "Specified" and "Estimate
 
 Before assigning an EM, double-check that the "Product" section of the user story [checklist](https://github.com/fleetdm/fleet/issues/new?assignees=&labels=story&projects=&template=story.md&title=) is complete (no TODOs). 
 
+If the story is tied to a customer feature request, the Head of Product Design (HPD) is responsible for adding the feature request issue to the [🏹 #g-customer-success board](https://github.com/fleetdm/fleet/issues#workspaces/g-customer-success-642c83a53e96760014c978bd/board). This way the Customer Success Manager (CSM) can review the wireframes and provide feedback on whether the proposed changes solve the customer's problem. If the changes don't, it's up to the HPD to decide whether to bring the user story back for more drafting or file a follow up user story (iteration).
+
 Once a bug is approved in design review, The Product Designer is responsible for moving the bug to the appropriate release board.