Next.js: Update custom `<App>` examples in README

[julianrubisch]

Apologies, I'd like to use a custom <App>, but the examples referenced in the README either don't include a custom pages/_app.js file (https://github.com/zeit/next.js/tree/canary/examples/layout-component) or don't exist anymore (https://github.com/zeit/next.js/blob/canary/examples/componentdidcatch)

[timneutkens]

They're not released yet, same with the custom <App> component.

[mattiasewers]

When can we expect a release? week? month?

[timneutkens]

Canary will be out this week. The stable release schedule is not public at this point 👍

[chanlito]

Hi, @timneutkens I'm new to next.js, I'm wondering how is the workaround before custom _app.js?

[Bamieh]

@timneutkens will _app be used to initialize the store for redux and wrap providers? (instead of HOCs at the page level?)

[timneutkens]

Just released https://github.com/zeit/next.js/releases/tag/6.0.0-canary.4

Will add the new examples soon (as per the initial ticket request).

[callumlocke]

It would be good to flesh out the readme section on custom apps too. Currently it doesn't explain what Component and Container do, and what props they take, if any.

[timneutkens]

The examples have been updated. Created a new issue for #4347

[sauravazad]

Please add details about container , I could not find one even in the codebase.

[timneutkens]

It's in lib/app.js, anyway there's an issue for it, #4347 as I said in the comment.