update duration

Author: Kiranchandratrey

learn-pr/philanthropies/identify-key-hardware-it-infrastructure-components/0-introduction.yml

@@ -8,6 +8,6 @@ metadata:
   author: kiranchandratrey
   ms.author: elenasim
   ms.topic: unit
-durationInMinutes: 9
+durationInMinutes: 1
 content: |
  [!include[](includes/0-introduction.md)]