Learn Editor: Update concept-dev-box-network-requirements.md

Author: RoseHJM

articles/dev-box/concept-dev-box-network-requirements.md

@@ -91,7 +91,7 @@ The following URLs and ports are required for the provisioning of dev boxes and
 - prau01.prod.cpcgateway.trafficmanager.net
 
 # [Dev box communication endpoints](#tab/DevBox)
-- .agentmanagement.dc.azure.com
+- *.agentmanagement.dc.azure.com
 
 - endpointdiscovery.cmdagent.trafficmanager.net
 - registration.prna01.cmdagent.trafficmanager.net