doc: add emptyWhileLoading prop doc

Author: guilbill

docs/EditInDialogButton.md

@@ -84,6 +84,7 @@ const CompanyShow = () => (
 | `resource`         | Optional | `string`          |         | The resource name, e.g. `posts`                                                         |
 | `sx`               | Optional | `object`          |         | Override the styles applied to the dialog component                                     |
 | `title`            | Optional | `ReactNode`       |         | The title of the dialog                                                                 |
+| `emptyWhileLoading`| Optional | `boolean`         | `false` | Set to `true` to return `null` while the list is loading                                |
 
 ## `children`
 

docs/ShowInDialogButton.md

@@ -94,7 +94,7 @@ This component accepts the following props:
 |----------------|----------|----------------|----------|---------------------------|
 | `ButtonProps`  | Optional | `object`       |          | Props to pass to the MUI `<Button>` component |
 | `children`     | Required | `ReactNode`    |          | The content of the dialog |
-| `empty WhileLoading` | Optional | `boolean` |         | Set to `true` to return `null` while the list is loading |
+| `emptyWhileLoading` | Optional | `boolean` |         | Set to `true` to return `null` while the list is loading |
 | `fullWidth`    | Optional | `boolean`      | `false`  | Set to `true` to make the dialog full width |
 | `icon`         | Optional | `ReactElement` |          | The icon of the button |
 | `id`           | Optional | `string | number` |       | The record id. If not provided, it will be deduced from the record context |