Rephrased to say ACR instead of container registry

Author: varshagangu9

articles/deployment-environments/how-to-configure-extensibility-terraform-container-image.md

@@ -31,7 +31,7 @@ Creating a custom container image allows you to customize your deployments to fi
 
 After you complete the image customization, you must build the image and push it to your container registry.
 
-Alternatively, you can fork the repo [Leveraging ADE's Extensibility Model With Terraform](https://github.com/Azure/ade-extensibility-model-terraform) to build and push the image to your container registry.
+Alternatively, you can fork the repo [Leveraging ADE's Extensibility Model With Terraform](https://github.com/Azure/ade-extensibility-model-terraform) to build and push the Terraform image to a provided ACR.
 
 ## Create and customize a container image with Docker