update document

Author: dev-javascript

README.md

@@ -1,9 +1,13 @@
-[![Test coverage](https://codecov.io/gh/dev-javascript/string-to-react-component/graph/badge.svg?token=GT1LU074L2)](https://codecov.io/gh/dev-javascript/string-to-react-component) [![NPM version](http://img.shields.io/npm/v/string-to-react-component.svg?style=flat-square)](http://npmjs.org/package/string-to-react-component) [![node](https://img.shields.io/badge/node.js-%3E=_8.0-green.svg?style=flat-square)](http://nodejs.org/download/) [![React](https://img.shields.io/badge/React-%3E=_16.8.0-green.svg?style=flat-square)](https://react.dev/) [![License](http://img.shields.io/npm/l/string-to-react-component.svg?style=flat-square)](LICENSE) [![npm download](https://img.shields.io/npm/dm/string-to-react-component.svg?style=flat-square)](https://npmjs.org/package/string-to-react-component) [![Build Status](https://travis-ci.org/ly-components/string-to-react-component.png)](https://travis-ci.org/ly-components/string-to-react-component)
-
 # string-to-react-component
 
 Create React component from string
 
+[![Test coverage](https://codecov.io/gh/dev-javascript/string-to-react-component/graph/badge.svg?token=GT1LU074L2)](https://codecov.io/gh/dev-javascript/string-to-react-component) [![NPM version](http://img.shields.io/npm/v/string-to-react-component.svg?style=flat-square)](http://npmjs.org/package/string-to-react-component) [![node](https://img.shields.io/badge/node.js-%3E=_8.0-green.svg?style=flat-square)](http://nodejs.org/download/) [![React](https://img.shields.io/badge/React-%3E=_16.8.0-green.svg?style=flat-square)](https://react.dev/) [![License](http://img.shields.io/npm/l/string-to-react-component.svg?style=flat-square)](LICENSE) [![npm download](https://img.shields.io/npm/dm/string-to-react-component.svg?style=flat-square)](https://npmjs.org/package/string-to-react-component) [![Build Status](https://travis-ci.org/ly-components/string-to-react-component.png)](https://travis-ci.org/ly-components/string-to-react-component)
+
+## Demo
+
+- [Online Demo](https://dev-javascript.github.io/string-to-react-component/)
+
 ## Table of Contents
 
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