Update board_config.md

Author: KingRichord

assets/board_config.md

@@ -1,9 +1,9 @@
 
 # 第四代同步板(V4)
-固件支持网口和串口配置，配置完成后自动重启并加载最新配置。建议采用任意串口工具发送以下指令：
+固件支持网口和串口配置，配置完成后自动重启并加载最新配置。打开任意串口工具发送以下指令：
 
 ```python
-{"f":"cfg","port":8888,"ip":[192,168,1,188],"subnet":[255,255,255,0],"hz_cam_1":1,"hz_cam_2":2,"hz_cam_3":4,"hz_cam_4":8,"hz_imu_2":10,"xtal_diff":0,"uart_0_baud_rate":921600,"uart_1_baud_rate":9600,"uart_2_baud_rate":115200,"use_gps":true,"use_pps":true,"version":400}
+{"f":"cfg","port":8888,"ip":[192,168,1,188],"subnet":[255,255,255,0],"hz_cam_1":1,"hz_cam_2":2,"hz_cam_3":4,"hz_cam_4":8,"hz_imu_2":10,"xtal_diff":0,"uart_0_baud_rate":921600,"uart_1_baud_rate":9600,"uart_2_baud_rate":115200,"use_gps":true,"use_pps":true,"version":400}\n
 ```
 指令说明：
 ```python
@@ -26,7 +26,7 @@
 ```
 
 # 第三代同步板(V3/MINI)
-固件支持网口和串口配置，配置完成后自动重启。建议采用任意串口工具发送以下指令：
+固件支持网口和串口配置，配置完成后自动重启并加载最新配置。打开任意串口工具发送以下指令：
 ```python
-{"f":"cfg","port":8888,"ip":[192,168,1,188],"subnet":[255,255,255,0],"hz_cam_1":10,"uart_0_baud_rate":921600,"uart_1_baud_rate":9600,"uart_2_baud_rate":115200,"use_gps":true,"use_pps":true,"version":300}
+{"f":"cfg","port":8888,"ip":[192,168,1,188],"subnet":[255,255,255,0],"hz_cam_1":10,"uart_0_baud_rate":921600,"uart_1_baud_rate":9600,"uart_2_baud_rate":115200,"use_gps":true,"use_pps":true,"version":300}\n
 ```