Update container-instances-create-docker-context.md

Updated login command to include --tenant-id flag requirement

Author: apaulture

includes/container-instances-create-docker-context.md

@@ -16,8 +16,9 @@ ms.custom: include file
 To use Docker commands to run containers in Azure Container Instances, first log into Azure:
 
 ```bash
-docker login azure
+docker login azure --tenant-id "[tenant ID]"
 ```
+Browse to the Microsoft Entra ID properties to find your tenant ID.
 
 When prompted, enter or select your Azure credentials.
 
@@ -35,4 +36,4 @@ Run `docker context ls` to confirm that you added the ACI context to your Docker
 
 ```
 docker context ls
-```
+```