Update README.md

Author: github-actions[bot]

README.md

@@ -35,6 +35,7 @@ services:
       SIGNAL_API_URL: http://signal-api:8080
       DEFAULT_RECIPIENTS: '[ "000", "001", "002" ]'
       SENDER: 123456789
+      API_TOKEN: LOOOOOONG_STRING
     ports:
       - "8880:8880"
     restart: unless-stopped
@@ -62,6 +63,7 @@ services:
       SIGNAL_API_URL: http://signal-api:8080
       DEFAULT_RECIPIENTS: '[ "000", "001", "002" ]'
       SENDER: 123456789
+      API_TOKEN: LOOOOOONG_STRING
     labels:
       - traefik.enable=true
       - traefik.http.routers.signal-api.rule=Host(`signal-api.mydomain.com`)