make metadata title sentence case

Author: ktoliver

articles/azure-supportability/regional-quota-requests.md

@@ -1,6 +1,6 @@
 ---
-title: Azure Regional quota increase requests | Microsoft Docs
-description: Regional quota increase requests
+title: Azure regional quota increase requests | Microsoft Docs
+description: Regional quota increase requests in Azure
 author: sowmyavenkat86
 ms.author: svenkat
 ms.date: 06/07/2019