docs(Uploader): add heic faq (#8470)

README.md

@@ -7,12 +7,12 @@
 <p align="center">Mobile UI Components built on Vue</p>
 
 <p align="center">
-    <img src="https://img.shields.io/npm/v/vant.svg?style=flat-square" alt="npm version" />
-    <img src="https://img.shields.io/github/workflow/status/youzan/vant/CI/dev?style=flat-square" alt="npm version" />
+    <img src="https://img.shields.io/npm/v/vant/next?style=flat-square" alt="npm version" />
+    <img src="https://img.shields.io/github/workflow/status/youzan/vant/CI/dev?style=flat-square" alt="CI Status" />
     <img src="https://img.shields.io/codecov/c/github/youzan/vant/dev.svg?style=flat-square&color=#4fc08d" alt="Coverage Status" />
     <img src="https://img.shields.io/npm/dm/vant.svg?style=flat-square&color=#4fc08d" alt="downloads" />
     <img src="https://img.shields.io/jsdelivr/npm/hm/vant?style=flat-square" alt="Jsdelivr Hits">
-    <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/vant.min.js?compression=gzip&style=flat-square&label=gzip%20size&color=#4fc08d" alt="Gzip Size" />
+    <img src="https://img.badgesize.io/https://unpkg.com/vant@3/lib/vant.min.js?compression=gzip&style=flat-square&label=gzip%20size&color=#4fc08d" alt="Gzip Size" />
 </p>
 
 <p align="center">

README.zh-CN.md

@@ -7,12 +7,12 @@
 <p align="center">轻量、可靠的移动端 Vue 组件库</p>
 
 <p align="center">
-    <img src="https://img.shields.io/npm/v/vant.svg?style=flat-square" alt="npm version" />
-    <img src="https://img.shields.io/github/workflow/status/youzan/vant/CI/dev?style=flat-square" alt="npm version" />
+    <img src="https://img.shields.io/npm/v/vant/next?style=flat-square" alt="npm version" />
+    <img src="https://img.shields.io/github/workflow/status/youzan/vant/CI/dev?style=flat-square" alt="CI Status" />
     <img src="https://img.shields.io/codecov/c/github/youzan/vant/dev.svg?style=flat-square&color=#4fc08d" alt="Coverage Status" />
     <img src="https://img.shields.io/npm/dm/vant.svg?style=flat-square&color=#4fc08d" alt="downloads" />
     <img src="https://img.shields.io/jsdelivr/npm/hm/vant?style=flat-square" alt="Jsdelivr Hits">
-    <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/vant.min.js?compression=gzip&style=flat-square&label=gzip%20size&color=#4fc08d" alt="Gzip Size" />
+    <img src="https://img.badgesize.io/https://unpkg.com/vant@3/lib/vant.min.js?compression=gzip&style=flat-square&label=gzip%20size&color=#4fc08d" alt="Gzip Size" />
 </p>
 
 <p align="center">

src/uploader/README.zh-CN.md

@@ -388,3 +388,11 @@ before-read、after-read、before-delete 执行时会传递以下回调参数：
 | @uploader-loading-icon-size        | `22px`               | -    |
 | @uploader-loading-icon-color       | `@white`             | -    |
 | @uploader-disabled-opacity         | `@disabled-opacity`  | -    |
+
+## 常见问题
+
+### 上传 HEIC/HEIF 格式的图片后无法展示？
+
+目前 Chrome、Safari 等浏览器不支持展示 HEIC/HEIF 格式的图片，因此上传后无法在 Uploader 组件中进行预览。
+
+[HEIF] 格式的兼容性请参考 [caniuse](https://caniuse.com/?search=heic)。