see #12: support english website

assets/community.md

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+---
+title: 社区
+type: about
+order: 2
+---
+
+## Community
+
+The book offers a telegram chat group, feel free to join if you are interested:
+
+[![](https://img.shields.io/badge/chat-telegram-blue.svg?style=popout-square&logo=telegram)](https://t.me/joinchat/FEeulBM5OVYzuDI4phQ9Mg)
+
+## 交流
+
+本书有以下读者 QQ 交流群，有兴趣的读者可以加入，加群需正确回答加群密码：
+
+![](../assets/qq-group.png)
+
+> 提示: `bW9kZXJuLWNwcC10dXRvcmlhbC1naXRodWI=`

assets/donate.md

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+---
+title: 资助
+type: about
+order: 1
+---
+
+## Donate
+
+I would love if you support me to make the book better:
+
+[![](https://img.shields.io/badge/donate-PayPal-104098.svg?style=popout-square&logo=PayPal)](https://www.paypal.me/ouchangkun/4.99eur)
+
+## 资助
+
+如果你认为本书对你起到了帮助，并希望赞助作者，可以通过下面的二维码给予支持：
+
+|微信|支付宝|
+|:--:|:--:|
+|![](../assets/wechat.jpg) | ![](../assets/alipay.jpg)|
+