Update README-ZH.md

Author: lijy91

README-ZH.md

@@ -432,6 +432,7 @@ class _HomePageState extends State<HomePage> with WindowListener {
 - [BlueBubbles](https://github.com/BlueBubblesApp/bluebubbles-app) - BlueBubbles is an ecosystem of apps bringing iMessage to Android, Windows, and Linux
 - [Yukino](https://github.com/yukino-app/yukino/tree/flutter-rewrite) - Yukino lets you read manga or stream anime ad-free from multiple sources.
 - [LunaSea](https://github.com/CometTools/LunaSea) - A self-hosted controller for mobile and macOS built using the Flutter framework.
+- [Linwood Butterfly](https://github.com/LinwoodCloud/Butterfly) - 用 Flutter 编写的开源笔记应用
 
 ## API