update readme

README.md

@@ -54,8 +54,34 @@ You can use the CAMELS dataset (see [here](https://github.com/OuyangWenyu/hydrod
 
 If CAMELS is used, you can skip this step.
 
+If the warning "hydro_setting.yml not found" is shown, you can create a hydro_setting.yml file in the user directory. In windows, it is usually "C:/Users/<your_username>". In Linux, it is usually "/home/<your_username>". The content of the file is as follows:
+
+```yaml
+# Update the following with your own settings, if you don't have, you can ignore it
+minio:
+  server_url: ''
+  client_endpoint: ''
+  access_key: ''
+  secret: ''
+local_data_path:
+  root: ''
+  datasets-origin: ''
+  datasets-interim: ''
+  basins-origin: ''
+  basins-interim: ''
+postgres:
+  server_url: ''
+  port: 5432
+  username: ''
+  password: ''
+  database: ''
+```
+
+
 To use your own data to run the model, you need prepare the data in the required format.
 
+**NOTE: We currently only support calibrating one basin at a time, although the following instructions cover multiple basin information, we have not thoroughly tested it.**
+
 We provide some transformation functions in the "scripts" directory. You can use them to transform your data to the required format.
 
 But you still need to do some manual work before transformation. Here are the steps: