⚠️ Audio readme (#348)

Author: AlexV525

README-ZH.md

@@ -69,6 +69,7 @@ Language: [English](README.md) | 中文
   - 🔬 HEIF 格式图片支持
 - 🎥 视频资源支持
 - 🎶 音频资源支持
+  - ⚠️ 由于 iOS/macOS 系统限制，仅支持应用沙盒内获取音频资源
 - 1️⃣ 单资源模式
 - 💱 国际化支持
   - ⏪ RTL 语言支持

README.md

@@ -69,6 +69,7 @@ See [Migration Guide][].
   - 🔬 HEIF Image type support
 - 🎥 Video asset support
 - 🎶 Audio asset support
+  - ⚠️ Due to limitations on iOS/macOS, audio can only be fetched within the sandbox
 - 1️⃣ Single asset mode
 - 💱 i18n support
   - ⏪ RTL language support