Merge pull request #505 from ReedSun/wxc-mask-bug-fix

[!] wxc-mask: fix bug that inconsistent behavior between clicking close button and clicking overlay
diff --git a/packages/wxc-dialog/README.md b/packages/wxc-dialog/README.md
index 21a5b13..980fcae 100644
--- a/packages/wxc-dialog/README.md
+++ b/packages/wxc-dialog/README.md
@@ -72,6 +72,7 @@
 
 | Prop | Type | Required | Default | Description |
 |-------------|------------|--------|-----|-----|
+| show | `Boolean` | `N` | `false` | Whether the dialog is show or not |
 | title | `String` | `Y` | `-` | title (only transparent) |
 | content | `String` | `N` | `-`| content |
 | left | `Number` |`N`| `0` | move left distance  |
diff --git a/packages/wxc-dialog/README_cn.md b/packages/wxc-dialog/README_cn.md
index 570528a..ee59555 100644
--- a/packages/wxc-dialog/README_cn.md
+++ b/packages/wxc-dialog/README_cn.md
@@ -72,6 +72,7 @@
 
 | Prop | Type | Required | Default | Description |
 |-------------|------------|--------|-----|-----|
+| show | `Boolean` | `N` | `false` | 对话框是否可见 |
 | title | `String` | `Y` | `-` | 标题 |
 | left | `Number` |`N`| `0` | 向左移动距离  |
 | content | `String` | `N` | `-`| 内容说明描述 |