yiran1268
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 ![面试流程](./docs/interview.png)
 
-## 技能树
-
-![skill tree](./docs/skill-tree.png)
-
 ## 微信群
 
-扫码加微信，备注：PIQA
+扫码加微信，备注：`PIQA`，有时候可能在忙，稍等片刻
 
 <p align="left"><img width="320" src="./docs/wechat.jpg" alt="wechat"></a></p>