更新 README.md

d66ea7f5 · 李川 · 89a6535c · d66ea7f5
--- a/README.md
+++ b/README.md
 # 说明
 Intel 8250 可编程串行通信接口芯片
 # 原理图
-![8250](https://www.codecode.net/engintime/Dream-Logic/Intel-classic-chips/8250/raw/master/8250.dlsche.svg)
+![raw svg](8250.dlsche.svg)
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