diff --git a/README.md b/README.md
index c15167c..0e5f682 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,16 @@
-# Keycloak Notifier
\ No newline at end of file
+# Keycloak Notifier
+
+## Example `.env`:
+
+```yaml
+KEYCLOAK_ADMIN_ID=<PH>
+KEYCLOAK_PASSWORD=<PH>
+KEYCLOAK_REALM=master
+KEYCLOAK_URL=https://auth.mydomain.com/
+KEYCLOAK_USERNAME=admin
+SMTP_HOST=smtp.mydomain.com
+SMTP_PASSWORD=<PH>
+SMTP_PORT=465
+SMTP_RECEIVER=my@email.com
+SMTP_SENDER=smtp.mydomain.com
+```