From 390e36754349ee8b346cc0fa090fd27ba4706287 Mon Sep 17 00:00:00 2001
From: mengning <mengning@ustc.edu.cn>
Date: Wed, 6 May 2020 21:44:28 +0800
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ee03d4e..7a71be7 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ qemu-system-x86_64 -kernel arch/x86/boot/bzImage
 
 ## your own OS kernel example code
 
-* mypcb.h、mymain.c和myinterrupt.c实现了一个简单的时间片轮转调度进程的精简内核，如下为进程上下文切换的关键代码:
+* mypcb.h、mymain.c和myinterrupt.c实现了一个简单的时间片轮转调度进程的精简内核，如下为进程上下文切换的关键代码（[视频讲解](https://mp.weixin.qq.com/s/SzpN1BNty5aPDZhNdCO5yA)）:
 ```
     	printk(KERN_NOTICE ">>>switch %d to %d<<<\n",prev->pid,next->pid);  
     	/* switch to next process */