Fix page title

Addresses https://github.com/MicrosoftDocs/azure-docs/issues/53182

Author: brandonh-msft

articles/event-grid/event-schema-azure-signalr.md

@@ -1,12 +1,12 @@
 ---
-title: Azure SingnalR as Event Grid source
+title: Azure SignalR as Event Grid source
 description: Describes the properties that are provided for Azure SignalR events with Azure Event Grid
 services: event-grid
 author: banisadr
 
 ms.service: event-grid
 ms.topic: conceptual
-ms.date: 04/09/2020
+ms.date: 04/23/2020
 ms.author: babanisa
 ---