docs(NumberKeyboard): add random key order demo (#7844)

src/number-keyboard/README.md

@@ -111,43 +111,23 @@ Use `title` prop to set keyboard title.
 />
 ```
 
-### Number Random
+### Random Key Order
 
-Use `random-key-order` prop to random sort number keypads.
+Use `random-key-order` prop to shuffle the order of keys.
 
 ```html
-<van-cell @touchstart.native.stop="show = true"
-  >弹出配置随机数字的键盘</van-cell
->
+<van-cell @touchstart.native.stop="show = true">
+  Show Keyboard With Random Key Order
+</van-cell>
 <van-number-keyboard
   :show="show"
-  :random-key-order="true"
+  random-key-order
   @blur="show = false"
   @input="onInput"
   @delete="onDelete"
 />
 ```
 
-```js
-import { Toast } from 'vant';
-
-export default {
-  data() {
-    return {
-      show: true,
-    };
-  },
-  methods: {
-    onInput(value) {
-      Toast(value);
-    },
-    onDelete() {
-      Toast('删除');
-    },
-  },
-};
-```
-
 ### Bind Value
 
 ```html
@@ -197,7 +177,7 @@ export default {
 | hide-on-click-outside | Whether to hide keyboard when outside is clicked | _boolean_ | `true` |
 | get-container `v2.10.0` | Return the mount node for NumberKeyboard | _string \| () => Element_ | - |
 | safe-area-inset-bottom | Whether to enable bottom safe area adaptation | _boolean_ | `true` |
-| random-key-order | whether to enable random sort number keypads | _boolean_ | `false` |
+| random-key-order `v2.12.2` | Whether to shuffle the order of keys | _boolean_ | `false` |
 
 ### Events