Update docker-compose.yml

Define your hostname to identify the host in telegram

docker-compose.yml

@@ -5,6 +5,7 @@ services:
   3x-ui:
     image: ghcr.io/mhsanaei/3x-ui:latest
     container_name: 3x-ui
+    hostname: yourhostname
     volumes:
       - $PWD/db/:/etc/x-ui/
       - $PWD/cert/:/root/cert/