Update getting-started.md

docusaurus/docs/getting-started.md

@@ -41,7 +41,7 @@ To create a new app, you may choose one of the following methods:
 ### npx
 
 ```sh
-npx create-react-app my-app
+npx create-react-app@latest my-app
 ```
 
 _([npx](https://medium.com/@maybekatz/introducing-npx-an-npm-package-runner-55f7d4bd282b) comes with npm 5.2+ and higher, see [instructions for older npm versions](https://gist.github.com/gaearon/4064d3c23a77c74a3614c498a8bb1c5f))_