Update try-number-lookup.md

Updated to include alt-text to the portal screenshot

Author: henikaraa

articles/communication-services/concepts/telephony/try-number-lookup.md

@@ -25,7 +25,7 @@ Try Number Lookup is a tool in Azure portal to help customers confirm that the p
 
 Open the [Azure portal](https://portal.azure.com/#home) and search for **Number Lookup**. Then enter a phone number that you want to look up or validate. You can either check national and international format for free, or request details about number type, country, and carrier for a fee. The tool also generates the associated code. You can select **Use my connection string** to automatically populate the `connection string` for the resource.
 
-![alt text](../media/try-number-lookup.png "Try Number Lookup")
+![A screenshot from the Azure portal displaying the new view for the Try Number Lookup option.](../media/try-number-lookup.png)
 
 You can also copy the generated code into an application and enrich it with other Azure Communication Services features such as chat, SMS, and voice and video calling.
 
@@ -37,4 +37,4 @@ Sending a lookup query is just the start. Now you can integrate other Azure Comm
 - [Get started with Number Lookup](/articles/communication-services/quickstarts/telephony/number-lookup.md)
 - [Calling SDK overview](../voice-video-calling/calling-sdk-features.md)
 - [Chat concepts](../chat/concepts.md)
-- [SMS overview](../sms/concepts.md)
+- [SMS overview](../sms/concepts.md)