Update index.yml

Author: KumarVivek

powerapps-docs/index.yml

@@ -12,7 +12,7 @@ metadata:
   ms.topic: hub-page # Required
   author: KumarVivek #Required; your GitHub user alias, with correct capitalization.
   ms.author: kvivek #Required; microsoft alias of author; optional team alias.
-  ms.date: 05/05/2022 #Required; mm/dd/yyyy format.
+  ms.date: 05/22/2023 #Required; mm/dd/yyyy format.
   hide_bc: false
 
 highlightedContent:
@@ -184,7 +184,7 @@ additionalContent:
     - items:
         # Card
         - title: Power Platform
-          summary: One-stop learning resource for Power Platform applications and features.
+          summary: One-stop learning resource for Power Platform applications and features including admin, developer, and guidance documentation.
           url: /power-platform
         # Card
         - title: Power Automate