Change children type from JSX.Element to React.ReactNode

Author: davidnguyen11

README.md

@@ -179,6 +179,6 @@ class App extends React.Component {
 ReactDOM.render(<App />, document.getElementById('root'));
 ```
 
-# License
+## License
 
 This project is licensed under the MIT License - see the [LICENSE](https://github.com/davidnguyen179/react-is-in-viewport/blob/master/LICENSE) file for details

src/index.tsx

@@ -174,7 +174,7 @@ type Props = DataProps & EventProps;
 
 interface DataProps {
   /** React component node */
-  children: JSX.Element | JSX.Element[] | string;
+  children: React.ReactNode;
   /** Delay time for scroll event */
   delay?: number;
   /** Type of check component if it is in the viewport */