Add star call-to-action in Community section (zh + en)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

@@ -213,6 +213,8 @@ Having trouble? Check the **[FAQ (English)](faq-en.md)** | **[常见问题 (中
 - Telegram Updates: [t.me/openrelay_updates](https://t.me/openrelay_updates)
 - Issues: [GitHub Issues](https://github.com/romgX/openrelay/issues)
 
+If OpenRelay saves you time or money, a **star** helps more people discover it.
+
 ## License
 
 Open Core model:
@@ -375,6 +377,8 @@ openrelay --test    # 测试所有 Provider 连接
 - Telegram 更新频道：[t.me/openrelay_updates](https://t.me/openrelay_updates)
 - 问题反馈：[GitHub Issues](https://github.com/romgX/openrelay/issues)
 
+如果 OpenRelay 帮到了你，点个 **Star** 让更多人发现它。
+
 ## 许可证
 
 Open Core 模式：