docs: fix go code

docs-en/05-develop/01-connect/03-go.md

@@ -38,7 +38,7 @@ import (
 
 func main() {
     token := os.Getenv("TDENGINE_CLOUD_TOKEN")
-    taosDSN := "https://cloud.taosdata.com?token=" + token
+    taosDSN := "http(cloud.tdengine.com:8085)/?token=" + token
     taos, err := sql.Open("taosRestful", taosDSN)
     if err != nil {
         fmt.Println("failed to connect TDengine, err:", err)