fix(examples): typo command name (#70094)

examples/route-handlers/README.md

@@ -13,11 +13,11 @@ Deploy the example using [Vercel](https://vercel.com?utm_source=github&utm_mediu
 Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init), [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/), or [pnpm](https://pnpm.io) to bootstrap the example:
 
 ```bash
-npx create-next-app --example route-handlerss route-handlers-app
+npx create-next-app --example route-handlers route-handlers-app
 ```
 
 ```bash
-yarn create next-app --example route-handlers route-handlerss-app
+yarn create next-app --example route-handlers route-handlers-app
 ```
 
 ```bash