docs(read-tip): 更正内容格式

Author: vaebe

packages/devui-vue/docs/components/read-tip/index.md

@@ -363,8 +363,8 @@ interface ReadTipRule {
  appendToBody?: boolean; //可以继承自 ReadTipOtions
  //customData与template搭配使用，customData为传入模板的上下文，可以自定义模板内容
  dataFn?: ({
-  element,
-  rule: ReadTipRule,
-  }) => Observable<{ title?: string; content?: string; template?: TemplateRef<any>; customData?: any }>;
+ element,
+ rule: ReadTipRule,
+ }) => Observable<{ title?: string; content?: string; template?: TemplateRef<any>; customData?: any }>;
 }
 ```