modify readme

README.md

@@ -54,9 +54,9 @@ English/[中文](https://github.com/rm-controls/rm_usb2can/blob/main/README_CN.m
 
 ### Circuit Making
 
-    We provide three different versions of Gerber files for production: two-way CAN + two-way UART, four-way CAN, two-way UART.The circuits of these three versions are designed with two-layer PCB, with an area of about 20 * 30MM. You can directly submit the packaged Gerber file to a manufacturer (such as [jlc](https://www.jlc.com/#)) for production.
+    We provide three different versions of Gerber files for production: [two-way CAN + two-way UART](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/2CAN%2B2UART), [four-way CAN](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/4CAN), [two-way UART](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/2UART).The circuits of these three versions are designed with two-layer PCB, with an area of about 20 * 30MM. You can directly submit the packaged Gerber file to a manufacturer (such as [jlc](https://www.jlc.com/#)) for production.
 
-    You can find the BOM (Bill Of Material) table corresponding to the board here and weld the components to the fabricated PCB according to this table. After welding, please carefully check whether there is residual solder between the pins, which will lead to short circuit of the circuit board. At the same time, you should also check whether there is false soldering of the pins.
+    You can find the BOM (Bill Of Material) table corresponding to the board [here](https://github.com/rm-controls/rm_usb2can/tree/main/bom) and weld the components to the fabricated PCB according to this table. After welding, please carefully check whether there is residual solder between the pins, which will lead to short circuit of the circuit board. At the same time, you should also check whether there is false soldering of the pins.
 
     After welding, use a multimeter to check whether there is a short circuit between 5V power interface and GND, and whether there is a short circuit between 3.3V power output and GND. When the above situation does not occur, connect the board to the USB port of the computer. At this time, you should see that the power indicator on the board is on, and the computer can recognize the USB HUB chip.
 

README_CN.md

@@ -54,9 +54,9 @@
 
 ### 电路制作
 
-    我们提供了三个不同版本的Gerber文件用于生产，分别是扩展：两路CAN+两路UART、四路CAN、两路UART。这三种版本的电路均采用两层PCB进行设计，面积约为20*30mm。你可以直接将打包好的gerber文件提交个生产厂家（如：[嘉立创](https://www.jlc.com/#)）进行生产。
+    我们提供了三个不同版本的Gerber文件用于生产，分别是扩展：[两路CAN+两路UART](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/2CAN%2B2UART)、[四路CAN](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/4CAN)、[两路UART](https://github.com/rm-controls/rm_usb2can/tree/main/gerber/2UART)。这三种版本的电路均采用两层PCB进行设计，面积约为20*30mm。你可以直接将打包好的gerber文件提交个生产厂家（如：[嘉立创](https://www.jlc.com/#)）进行生产。
 
-    你可以在此处找到该板对应的BOM (Bill Of Material) 表，并且依据这张表格将元器件焊接到已经制作好的PCB上。焊接完成后，请仔细检查是否有引脚之间有残余的焊锡，那将会导致电路板发生短路，同时你还要检查引脚是否有虚焊的现象发生。
+    你可以在[此处](https://github.com/rm-controls/rm_usb2can/tree/main/bom)找到该板对应的BOM (Bill Of Material) 表，并且依据这张表格将元器件焊接到已经制作好的PCB上。焊接完成后，请仔细检查是否有引脚之间有残余的焊锡，那将会导致电路板发生短路，同时你还要检查引脚是否有虚焊的现象发生。
 
     焊接完成后，用万用表检查5V电源接口与GND之间是否短路、3.3V电源输出与GND之间是否短路。当确保上述情况没有出现时，再将板子连接电脑的USB口，此时应该可以看到板上的电源指示灯亮起，并且电脑能够识别到USB HUB芯片。