Update hpe-proliant-dl20-legacy.md

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cc: @batamig

Author: arielsaghiv

articles/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-legacy.md

@@ -9,7 +9,8 @@ ms.topic: reference
 
 This article describes the **HPE ProLiant DL20 Gen10** appliance for OT sensors in an enterprise deployment.
 
-Legacy appliances are certified but aren't currently offered as pre-configured appliances.
+> [!NOTE]
+> Legacy appliances are certified but aren't currently offered as preconfigured appliances.
 
 | Appliance characteristic |Details |
 |---------|---------|