Document WEB_LISTEN in .env.example

Author: djkurlander

.env.example

@@ -3,3 +3,8 @@
 # Then generate a license key in your account dashboard.
 MAXMIND_ACCOUNT_ID=your_account_id
 MAXMIND_LICENSE_KEY=your_license_key
+
+# Web server bind address (default: 0.0.0.0 — binds to all interfaces)
+# Set to 127.0.0.1 if using a reverse proxy (nginx, Cloudflare) on the same host
+# so the web container is not directly exposed to the internet.
+#WEB_LISTEN=127.0.0.1