docs(with-sentry): Add note regarding replacing wizardcopy.js config …

…files (#37039)

examples/with-sentry/README.md

@@ -49,7 +49,7 @@ Next, run [`sentry-wizard`](https://docs.sentry.io/platforms/javascript/guides/n
 npx @sentry/wizard -i nextjs
 ```
 
-_Beware that above command creates files extended with `.wizardcopy.js` as the example already contains the config files._
+_Beware that above command creates files extended with `.wizardcopy.js` as the example already contains the config files. Thus after running the wizard, replace example files with those newly created._
 
 Once the files are created, you can further configure your app by adding [SDK settings](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/) to `sentry.server.config.js` and `sentry.client.config.js`, and [`SentryWebpackPlugin` settings](https://github.com/getsentry/sentry-webpack-plugin#options) to `next.config.js`.