add summary bar

Author: sarahsanders-docker

content/manuals/security/for-admins/unassociated-machines.md

@@ -5,6 +5,8 @@ keywords: unassociated machines, insights, manage users, enforce sign-in
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+{{< summary-bar feature_name="Unassociated machines" >}}
+
 Docker administrators can identify, view, and manage Docker Desktop machines
 that should be associated with their organization but aren't currently linked
 to user accounts. This self-service capability helps you understand Docker