doc: Update previewWidth document. (#192)

Author: jaywcjlove

README.md

@@ -246,6 +246,8 @@ export interface IMarkdownEditor extends ReactCodeMirrorProps {
   hideToolbar?: boolean;
   /** Override the default preview component */
   renderPreview?: (props: MarkdownPreviewProps, initVisible: boolean) => React.ReactNode;
+  /** Preview expanded width @default `50%` */
+  previewWidth?: string;
   /** Tool display settings. */
   toolbars?: IToolBarProps['toolbars'];
   /** Tool display settings. */

website/Example.tsx

@@ -12,7 +12,7 @@ export function Example() {
   const [hideToolbar, setHideToolbar] = useState(true);
   return (
     <div className={styles.editor}>
-      <MarkdownEditor visible={visible} previewWidth="100%" height="500px" value={mdstr} hideToolbar={hideToolbar} />
+      <MarkdownEditor visible={visible} height="500px" value={mdstr} hideToolbar={hideToolbar} />
       <div style={{ marginTop: 10, display: 'flex', gap: '10px' }}>
         <button
           onClick={() => {