Merge pull request reactjs#197 from learning/learning-npx-install-example

Add an example for creating a new application

Author: bvaughn

content/docs/installation.md

@@ -40,6 +40,15 @@ cd my-app
 npm start
 ```
 
+If you have npm 5.2.0+ installed, you may use [npx](https://www.npmjs.com/package/npx) instead.
+
+```bash
+npx create-react-app my-app
+
+cd my-app
+npm start
+```
+
 Create React App doesn't handle backend logic or databases; it just creates a frontend build pipeline, so you can use it with any backend you want. It uses build tools like [Babel](http://babeljs.io/) and [webpack](https://webpack.js.org/) under the hood, but works with zero configuration.
 
 When you're ready to deploy to production, running `npm run build` will create an optimized build of your app in the `build` folder. You can learn more about Create React App [from its README](https://github.com/facebookincubator/create-react-app#create-react-app-) and the [User Guide](https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md#table-of-contents).