Update articles/azure-signalr/signalr-howto-scale-signalr.md

Co-authored-by: Liangying.Wei <[email protected]>

Author: JialinXin

articles/azure-signalr/signalr-howto-scale-signalr.md

@@ -9,7 +9,7 @@ ms.author: lianwei
 ms.custom: devx-track-azurecli
 ---
 # How to scale an Azure SignalR Service instance?
-This article shows you how to scale your instance of Azure SignalR Service. There are two scenarios for scaling. Scale up and scale out.
+This article shows you how to scale your instance of Azure SignalR Service. There are two scenarios for scaling: scale up and scale out.
 
 * [Scale up](https://en.wikipedia.org/wiki/Scalability#Horizontal_and_vertical_scaling): Get more units, connections, messages, and more. You scale up by changing the pricing tier from Free to Standard.
 * [Scale out](https://en.wikipedia.org/wiki/Scalability#Horizontal_and_vertical_scaling): Increase the number of SignalR units. You can scale out to as many as 100 units. There are limited unit options to select for the scaling: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 units for a single SignalR Service instance. If you want to scale beyond 100 units, the [Premium_P2](#enhanced-large-instance-support-with-premium_p2-sku) SKU offers expanded capabilities.