Update "Start a new React project" for stable Next.js App Router (#6020)

Author: leerob

src/content/learn/start-a-new-react-project.md

@@ -21,12 +21,12 @@ If you want to build a new app or a new website fully with React, we recommend p
 **[Next.js](https://nextjs.org/) is a full-stack React framework.** It's versatile and lets you create React apps of any size--from a mostly static blog to a complex dynamic application. To create a new Next.js project, run in your terminal:
 
 <TerminalBlock>
-npx create-next-app
+npx create-next-app@latest
 </TerminalBlock>
 
 If you're new to Next.js, check out the [Next.js tutorial.](https://nextjs.org/learn/foundations/about-nextjs)
 
-Next.js is maintained by [Vercel](https://vercel.com/). You can [deploy a Next.js app](https://nextjs.org/docs/deployment) to any Node.js or serverless hosting, or to your own server. [Fully static Next.js apps](https://nextjs.org/docs/advanced-features/static-html-export) can be deployed to any static hosting.
+Next.js is maintained by [Vercel](https://vercel.com/). You can [deploy a Next.js app](https://nextjs.org/docs/app/building-your-application/deploying) to any Node.js or serverless hosting, or to your own server. Next.js also supports a [static export](https://nextjs.org/docs/pages/building-your-application/deploying/static-exports) which doesn't require a server.
 
 ### Remix {/*remix*/}
 
@@ -91,7 +91,7 @@ These features are getting closer to being production-ready every day, and we've
 
 **[Next.js's App Router](https://nextjs.org/docs) is a redesign of the Next.js APIs aiming to fulfill the React team’s full-stack architecture vision.** It lets you fetch data in asynchronous components that run on the server or even during the build.
 
-Next.js is maintained by [Vercel](https://vercel.com/). You can [deploy a Next.js app](https://nextjs.org/docs/deployment) to any Node.js or serverless hosting, or to your own server. Next.js also supports [static export](https://nextjs.org/docs/app/building-your-application/deploying/static-exports) which doesn't require a server.
+Next.js is maintained by [Vercel](https://vercel.com/). You can [deploy a Next.js app](https://nextjs.org/docs/app/building-your-application/deploying) to any Node.js or serverless hosting, or to your own server. Next.js also supports [static export](https://nextjs.org/docs/app/building-your-application/deploying/static-exports) which doesn't require a server.
 
 <DeepDive>