fix typo

Author: JnHs

articles/azure-arc/servers/network-requirements.md

@@ -55,7 +55,7 @@ The table below lists the URLs that must be available in order to install and us
 |`guestnotificationservice.azure.com`, `*.guestnotificationservice.azure.com`|Notification service for extension and connectivity scenarios|Always| Public |
 |`azgn*.servicebus.windows.net`|Notification service for extension and connectivity scenarios|Always| Public |
 |`*.servicebus.windows.net`|For Windows Admin Center and SSH scenarios|If using SSH or Windows Admin Center from Azure|Public|
-|`*waconazure.com`|For Windows Admin Center connectivity|If using Windows Admin Center|Public|
+|`*.waconazure.com`|For Windows Admin Center connectivity|If using Windows Admin Center|Public|
 |`*.blob.core.windows.net`|Download source for Azure Arc-enabled servers extensions|Always, except when using private endpoints| Not used when private link is configured |
 |`dc.services.visualstudio.com`|Agent telemetry|Optional| Public |