Update README.md

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Lyon 2022-01-05 19:46:54 +08:00 committed by GitHub
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@ -14,6 +14,6 @@ And this bsp is an **MDK-keil** project.
4. Compile and Debug
5. The **printf** is connected to **UART0** , and **TX is GP0** , **RX is GP1** .
5. The **printf** is connected to usart debug viewer.
![image](https://user-images.githubusercontent.com/88232613/145928146-2954bd9e-5465-4bac-94fa-f8fe13c1b1d9.png)
![image](https://user-images.githubusercontent.com/88232613/148212737-4f4938fa-e895-4549-8901-01d3b594bb4e.png)