diff --git a/README.md b/README.md
index 106722e..01a8175 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ A tool to deploy a mostly serverless MLflow on a GCP project with one command
 
 ### Pre-requesites
 - A GCP project on which you are owner
+- Terraform >= 0.13.2 installed
 - Initialized gcloud SDK with your owner account
 - Docker engine running
 - No app engine application running and no consent screen already setup
@@ -17,11 +18,12 @@ Fill out the `vars` file.
 |`TF_VAR_project_id`|Name of the GCP project|
 |`TF_VAR_backend_bucket`|Name of the terraform backend bucket. Should be globally unique. No `gs://` prefix|
 |`TF_VAR_consent_screen_support_email`|Contact email address displayed by the SSO screen when the user trying to log in is not authorized. The address should be that of the user deploying mlflow (you) or a Cloud Identity group managed by this user|
-|`TF_VAR_web_app_users`|List of authorized users/groups/domains. Should be a single quoted list of string such as '["user:jane@example.com", "group:people@example.com", "domain:example.com"]'|
+|`TF_VAR_web_app_users`|List of authorized users/groups/domains. Should be a single quoted list of string such as '["user:jane@example.com", "group:people@example.com", "domain:example.com"]'. Email addresses and domains must be associated with an active Google Account, G Suite account, or Cloud Identity account.|
 |`TF_VAR_network_name`|The network the application and backend should attach to. If left blank, a new network will be created.|
 
 **Run `make one-click-mlflow` and follow the prompts.**
 
+
 ### What it does
 - Enables the necessary services
 - Builds and pushes the MLFlow docker image
diff --git a/vars b/vars
index 43044fd..4cab2cb 100644
--- a/vars
+++ b/vars
@@ -1,5 +1,5 @@
-export TF_VAR_project_id=two-click-mlflow
-export TF_VAR_backend_bucket=tfstate-mlflow-atf-two
-export TF_VAR_consent_screen_support_email=alexis.vialaret@artefact.com
-export TF_VAR_web_app_users='["user:alexis.vialaret@artefact.com", "user:thomas.griseau@artefact.com"]'
-export TF_VAR_network_name=default
\ No newline at end of file
+export TF_VAR_project_id=
+export TF_VAR_backend_bucket=
+export TF_VAR_consent_screen_support_email=
+export TF_VAR_web_app_users=
+export TF_VAR_network_name=
\ No newline at end of file