Update index.yml

Author: cmcclister

articles/security/index.yml

@@ -1,12 +1,12 @@
 ### YamlMime:Hub
 
 title: Azure security documentation
-summary: Azure offers security advantages that support your compliance efforts, provide cost-effective security for your organization, and help protect your hybrid and multi-cloud platforms, applications, and data.
+summary: Azure offers security advantages that support your compliance efforts, provide cost-effective security for your organization, and help protect your hybrid and multicloud platforms, applications, and data.
 brand: azure
 
 metadata:
   title: Azure security documentation
-  description: Azure offers security advantages that support your compliance efforts, provide cost-effective security for your organization, and help protect your hybrid and multi-cloud platforms, applications, and data.
+  description: Azure offers security advantages that support your compliance efforts, provide cost-effective security for your organization, and help protect your hybrid and multicloud platforms, applications, and data.
   services: security
   ms.service: security
   ms.subservice: na