Removed line break in dataSource description

Removed line break in dataSource description

components/transfer/index.en-US.md

@@ -18,8 +18,7 @@ One or more elements can be selected from either column, one click on the proper
 | Property | Description | Type | Default |
 | -------- | ----------- | ---- | ------- |
 | className | A custom CSS class. | string | ['', ''] |
-| dataSource | Used for setting the source data. The elements that are part of this array will be present the left column. 
-Except the elements whose keys are included in `targetKeys` prop. | [TransferItem](https://git.io/vMM64)\[] | \[] |
+| dataSource | Used for setting the source data. The elements that are part of this array will be present the left column. Except the elements whose keys are included in `targetKeys` prop. | [TransferItem](https://git.io/vMM64)\[] | \[] |
 | disabled | Whether disabled transfer | boolean | false |
 | filterOption | A function to determine whether an item should show in search result list | (inputValue, option): boolean |  |
 | footer | A function used for rendering the footer. | (props): ReactNode |  |