update env file

.env.sample

@@ -1,5 +1,36 @@
 TAG=
 BASEDIR=
 
+## vaultwarden env
+# https://github.com/dani-garcia/vaultwarden/blob/bb2412d0339e1da5dee99fc566a2b2aab5d2808c/.env.template
+
 # generate token: < /dev/urandom tr -dc A-Za-z0-9 | head -c32;echo;
 ADMIN_TOKEN=
+# DISABLE_ADMIN_TOKEN=false
+
+## general settings
+# DOMAIN=https://vw.domain.tld
+# SIGNUPS_ALLOWED=true
+# SIGNUPS_DOMAINS_WHITELIST=example.com,example.net,example.org
+# ORG_CREATION_USERS=admin1@example.com,admin2@example.com
+# PASSWORD_HINTS_ALLOWED=true
+# SENDS_ALLOWED=true
+
+## yubikey settings
+# YUBICO_CLIENT_ID=11111
+# YUBICO_SECRET_KEY=AAAAAAAAAAAAAAAAAAAAAAAA
+# YUBICO_SERVER=http://yourdomain.com/wsapi/2.0/verify # not need for yubico cloud
+
+## email settings
+# SMTP_HOST=smtp.domain.tld
+# SMTP_FROM=vaultwarden@domain.tld
+# SMTP_FROM_NAME=Vaultwarden
+# SMTP_SECURITY=starttls # ("starttls", "force_tls", "off") Enable a secure connection. Default is "starttls" (Explicit - ports 587 or 25), "force_tls" (Implicit - port 465) or "off", no encryption (port 25)
+# SMTP_PORT=587          # Ports 587 (submission) and 25 (smtp) are standard without encryption and with encryption via STARTTLS (Explicit TLS). Port 465 (submissions) is used for encrypted submission (Implicit TLS).
+# SMTP_USERNAME=username
+# SMTP_PASSWORD=password
+# SMTP_TIMEOUT=15
+
+# SIGNUPS_VERIFY=false
+# INVITATIONS_ALLOWED=true
+# INVITATION_ORG_NAME=Vaultwarden