docs: update README files to encourage community support

- Added a call-to-action in English, Japanese, and Chinese README files inviting users to star the project or sponsor its development.
- Enhanced visibility of community engagement options to foster support for Cherry Studio.

README.md

@@ -13,6 +13,8 @@ Cherry Studio is a desktop client that supports for multiple LLM providers, avai
 
 👏 Join [Telegram Group](https://t.me/CherryStudioAI)
 
+❤️ Like Cherry Studio? Give it a star 🌟 or [Sponsor](docs/sponsor.md) to support the development!
+
 # 🌠 Screenshot
 
 ![](https://github.com/user-attachments/assets/28585d83-4bf0-4714-b561-8c7bf57cc600)

docs/README.ja.md

@@ -13,6 +13,8 @@ Cherry Studioは、複数のLLMプロバイダーをサポートするデスク
 
 👏 [Telegramグループ](https://t.me/CherryStudioAI)に参加しましょう
 
+❤️ Cherry Studioをお気に入りにしましたか？小さな星をつけてください 🌟 または [スポンサー](sponsor.md) をして開発をサポートしてください！❤️
+
 # 🌠 スクリーンショット
 
 ![](https://github.com/user-attachments/assets/28585d83-4bf0-4714-b561-8c7bf57cc600)

docs/README.zh.md

@@ -13,6 +13,8 @@ Cherry Studio 是一款支持多个大语言模型（LLM）服务商的桌面客
 
 👏 欢迎加入 [Telegram 群组](https://t.me/CherryStudioAI)
 
+❤️ 喜欢 Cherry Studio? 点亮小星星 🌟 或 [赞助开发者](sponsor.md)! ❤️
+
 # 🌠 界面
 
 ![](https://github.com/user-attachments/assets/28585d83-4bf0-4714-b561-8c7bf57cc600)