Fix Ubuntu setup documentation

[sainthkh]

Closes #20260

Description

Added specific steps after installing and setting up docker to finish the WordPress installation.

How has this been tested?

N/A

Screenshots

N/A

Types of changes

Bug fix (document fix)

Checklist:

• [N/A] My code is tested.
• [N/A] My code follows the WordPress code style.
• [N/A] My code follows the accessibility standards.
• [N/A] My code has proper inline documentation.
• I've included developer documentation if appropriate.
• [N/A] I've updated all React Native files affected by any refactorings/renamings in this PR.

[ockham]

Hi, I'm also on Ubuntu. I wasn't aware of the env-ubuntu doc, but recently ran into the same issue when following the "Getting Started" doc. People pointed me to the new wp-env based setup, and I updated that doc accordingly (#20044).

(The gist is that instead of using npm run env start, you now run npx wp-env start.)

I think that the env-ubuntu doc should be aligned with the Getting Started doc -- both should suggest either npm run env start, or npx wp-env start -- and from what people have told me, it's the latter that we're going to commit to.

[sainthkh]

@ockham I'll follow the new doc and check if it works.

[sainthkh]

As you raised this issue in #20180, it seems that npx wp-env start doesn't work for now in Ubuntu.

It seems that the problem wasn't that easy as fixing this document.

EDIT: was -> wasn't.

[talldan]

it seems that npx wp-env start doesn't work for now in Ubuntu.

Hey @sainthkh, in what way doesn't it work?

edit: Oh, sorry, I see you linked to #20180 which has more details.

[mkaz]

I updated the docs in PR #25060 based on the latest Ubuntu version 20.04.1

Can you confirm the updated documentation works as expected, you can view directly here:
https://developer.wordpress.org/block-editor/tutorials/devenv/docker-ubuntu/

If so, I think we can close this PR.

[sainthkh]

@mkaz It works. Close this PR.