update docs

packages/artplayer-document/docs/en/Options.mdx

@@ -886,6 +886,8 @@ Set a preview map on the progress bar
 | `url`    | `String` | Preview url    |
 | `number` | `Number` | Preview number |
 | `column` | `Number` | Preview column |
+| `width`  | `Number` | Preview width  |
+| `height` | `Number` | Preview height |
 
 <div className="run-code">▶ Run Code</div>
 

packages/artplayer-document/docs/zh-cn/Options.mdx

@@ -58,13 +58,16 @@ var art = new Artplayer({
 <div className="run-code">▶ Run Code</div>
 
 ```js
-var art = new Artplayer({
-    container: '.artplayer-app',
-    url: '/assets/sample/video.mp4',
-    muted: true,
-}, function() {
-    this.play();
-});
+var art = new Artplayer(
+    {
+        container: '.artplayer-app',
+        url: '/assets/sample/video.mp4',
+        muted: true,
+    },
+    function () {
+        this.play();
+    },
+);
 ```
 
 :::tip 提示
@@ -73,7 +76,6 @@ var art = new Artplayer({
 
 :::
 
-
 ## poster
 
 -   类型: `String`
@@ -884,6 +886,8 @@ var art = new Artplayer({
 | `url`    | `String` | 预览图地址 |
 | `number` | `Number` | 预览图数量 |
 | `column` | `Number` | 预览图列数 |
+| `width`  | `Number` | 预览图宽度 |
+| `height` | `Number` | 预览图高度 |
 
 <div className="run-code">▶ Run Code</div>
 
@@ -1137,4 +1141,4 @@ var art = new Artplayer({
     url: '/assets/sample/video.mp4',
     airplay: true,
 });
-```
+```