doc: Update README.md

README.md

@@ -66,18 +66,18 @@ $ npm create kkt my-app -e `<Example Name>`
 $ yarn create kkt my-app -e `<Example Name>`
 ```
 
-- [**`basic`**](https://github.com/kktjs/kkt/tree/master/example/basic) - The [react](https://github.com/facebook/react) base application.
+- [**`basic`**](https://github.com/kktjs/kkt/tree/master/example/basic) - The [react](https://github.com/facebook/react) base application. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/basic)
 - [**`bundle`**](https://github.com/kktjs/kkt/tree/master/example/bundle) - Package the UMD package for developing the React component library.
 - [**`electron`**](https://github.com/kktjs/kkt/tree/master/example/electron) - Use an example of [`Electronjs`](https://github.com/electron).
-- [**`less`**](https://github.com/kktjs/kkt/tree/master/example/less) - Use an example of `Less`.
-- [**`markdown`**](https://github.com/kktjs/kkt/tree/master/example/markdown) - Use an example of `Markdown`.
+- [**`less`**](https://github.com/kktjs/kkt/tree/master/example/less) - Use an example of `Less`. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/less)
+- [**`markdown`**](https://github.com/kktjs/kkt/tree/master/example/markdown) - Use an example of `Markdown`. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/markdown)
 - [**`react-component-tsx`**](https://github.com/kktjs/kkt/tree/master/example/react-component-tsx) - Create a project containing the website for the react component library.
-- [**`rematch-tsx`**](https://github.com/kktjs/kkt/tree/master/example/rematch-tsx) - Use [`Rematch`](https://github.com/rematch/rematch) example for TypeScript.
-- [**`rematch`**](https://github.com/kktjs/kkt/tree/master/example/rematch) - Use [`Rematch`](https://github.com/rematch/rematch) for the project.
-- [**`scss`**](https://github.com/kktjs/kkt/tree/master/example/scss) - Use an example of `Scss`.
-- [**`stylus`**](https://github.com/kktjs/kkt/tree/master/example/stylus) - Use an example of `Stylus`.
-- [**`typescript`**](https://github.com/kktjs/kkt/tree/master/example/typescript) - Use an example of `TypeScript`.
-- [**`uiw`**](https://github.com/kktjs/kkt/tree/master/example/uiw) - Use [`uiw`](https://uiwjs.github.io/) for the project.
+- [**`rematch-tsx`**](https://github.com/kktjs/kkt/tree/master/example/rematch-tsx) - Use [`Rematch`](https://github.com/rematch/rematch) example for TypeScript. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/rematch-tsx)
+- [**`rematch`**](https://github.com/kktjs/kkt/tree/master/example/rematch) - Use [`Rematch`](https://github.com/rematch/rematch) for the project. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/rematch)
+- [**`scss`**](https://github.com/kktjs/kkt/tree/master/example/scss) - Use an example of `Scss`. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/scss)
+- [**`stylus`**](https://github.com/kktjs/kkt/tree/master/example/stylus) - Use an example of `Stylus`. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/stylus)
+- [**`typescript`**](https://github.com/kktjs/kkt/tree/master/example/typescript) - Use an example of `TypeScript`. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/typescript)
+- [**`uiw`**](https://github.com/kktjs/kkt/tree/master/example/uiw) - Use [`uiw`](https://uiwjs.github.io/) for the project. [![Open in CodeSandbox](https://img.shields.io/badge/Open%20in-CodeSandbox-blue?logo=codesandbox)](https://codesandbox.io/s/github/kktjs/kkt/tree/master/example/uiw)
 
 
 ## How to rewire your create-react-app project