:memo: 更新 README 把开发指南放到显眼的地方

README.md

@@ -78,7 +78,7 @@ Cloud services require a paid subscription.
 * [SiYuan development plan and progress](https://github.com/orgs/siyuan-note/projects/1)
 * [SiYuan changelog](CHANGELOG.md)
 
-## 🛠️ Download Setup
+## 🚀 Download Setup
 
 It is recommended to give priority to installing through the application market on the desktop and mobile, so that you can upgrade the version with one click in the future.
 
@@ -149,6 +149,10 @@ We release insider preview before major updates, please visit [https://github.co
 * [Discord](https://discord.com/invite/bzfCBwMzdP) A community built by enthusiastic users
 * [Awesome SiYuan](https://github.com/siyuan-note/awesome) Resources organized by enthusiastic users
 
+## 🛠️ Development Guide
+
+See [Development Guide](https://github.com/siyuan-note/siyuan/blob/master/.github/CONTRIBUTING.md).
+
 ## ❓ FAQ
 
 ### Is SiYuan right for me? Or how should I choose note-taking software?

README_zh_CN.md

@@ -80,7 +80,7 @@
 * [思源笔记开发计划和进度](https://github.com/orgs/siyuan-note/projects/1)
 * [思源笔记版本变更和公告](https://ld246.com/tag/siyuan-announcement)
 
-## 🛠️ 下载安装
+## 🚀 下载安装
 
 桌面端和移动端建议优先考虑通过应用市场安装，这样以后升级版本时可以一键更新。
 
@@ -154,6 +154,10 @@
 * [用户社区汇总](https://ld246.com/article/1640266171309) 由热心用户建立的社区
 * [Awesome SiYuan](https://github.com/siyuan-note/awesome) 由热心用户整理的资源
 
+## 🛠️ 开发指南
+
+见：[开发指南](https://github.com/siyuan-note/siyuan/blob/master/.github/CONTRIBUTING_zh_CN.md)。
+
 ## ❓ 常见问题和解答
 
 ### 听说思源笔记会通过用户电脑挖矿？