Update docker-compose.quickstart.yml

compose/docker-compose.quickstart.yml

@@ -31,7 +31,7 @@ services:
     environment:
       SERVER_HOST: "SERVER_PUBLIC_IP"
       SERVER_API_CONN_STRING: "api.NETMAKER_BASE_DOMAIN:443"
-      SERVER_GRPC_CONN_STRING: "grpc.NETMAKER_BASE_DOMAIN:1443"
+      SERVER_GRPC_CONN_STRING: "grpc.NETMAKER_BASE_DOMAIN:443"
       COREDNS_ADDR: "SERVER_PUBLIC_IP"
       GRPC_SSL: "on"
       DNS_MODE: "on"