Corrected template filenames

Author: RoseHJM

articles/deployment-environments/configure-environment-definition.md

@@ -23,8 +23,8 @@ An environment definition is composed of at least two files:
 
 - A template from an IaC framework. For example:
     - An Azure Resource Manager (ARM) template might use a file called *azuredeploy.json*.
-    - A Bicep template might use a file called *azuredeploy.bicep*.
-    - A Terraform template might use a file called *azuredeploy.tf*, or *azuredeploy.tf.json*.
+    - A Bicep template might use a file called *main.bicep*.
+    - A Terraform template might use a file called *azuredeploy.tf*.
 - A configuration file that provides metadata about the template. This file should be named *environment.yaml*.
 
 Your development teams use the environment definitions that you provide in the catalog to deploy environments in Azure.