examples: fix README with google analytics (#31384)

examples/with-google-analytics/README.md

@@ -1,6 +1,6 @@
 # Example app with analytics
 
-This example shows how to use [Next.js](https://github.com/vercel/next.js) along with [Google Analytics](https://developers.google.com/analytics/devguides/collection/gtagjs/). A custom [\_document](https://nextjs.org/docs/advanced-features/custom-document) is used to inject [tracking snippet](https://developers.google.com/analytics/devguides/collection/gtagjs/) and track [pageviews](https://developers.google.com/analytics/devguides/collection/gtagjs/pages) and [event](https://developers.google.com/analytics/devguides/collection/gtagjs/events).
+This example shows how to use [Next.js](https://github.com/vercel/next.js) along with [Google Analytics](https://developers.google.com/analytics/devguides/collection/gtagjs/). A custom [\_app](https://nextjs.org/docs/advanced-features/custom-app) is used to inject [tracking snippet](https://developers.google.com/analytics/devguides/collection/gtagjs/) and track [pageviews](https://developers.google.com/analytics/devguides/collection/gtagjs/pages) and [event](https://developers.google.com/analytics/devguides/collection/gtagjs/events).
 
 ## Deploy your own
 
@@ -10,7 +10,7 @@ Deploy the example using [Vercel](https://vercel.com?utm_source=github&utm_mediu
 
 ## How to use
 
-Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init) or [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/) to bootstrap the example::
+Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init) or [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/) to bootstrap the example:
 
 ```bash
 npx create-next-app --example with-google-analytics with-google-analytics-app