Fixed #35502: Clarified tutorial instructions

[tabiva]

Updated startproject command in tutorial to 'django-admin startproject mysite djangotutorial' for clearer directory structure explanation.

Trac ticket number

ticket-35502

Branch description

The tutorial previously instructed users to create a 'mysite' directory and another directory with the same name inside it. This update resolves the confusion by changing the start project command to: django-admin startproject mysite djangotutorial., and updating references to the new folder. This makes it clear to which directory the tutorial is referring.

Checklist

• This PR targets the main branch.
• The commit message is written in past tense, mentions the ticket number, and ends with a period.
• I have checked the "Has patch" ticket flag in the Trac system.
• I have added or updated relevant tests.
• I have added or updated relevant docs, including release notes if applicable.
• I have attached screenshots in both light and dark modes for any UI changes.

[github-actions]

Hello! Thank you for your contribution 💪

As it's your first contribution be sure to check out the patch review checklist.

If you're fixing a ticket from Trac make sure to set the "Has patch" flag and include a link to this PR in the ticket!

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Welcome aboard ⛵️!

[sarahboyce]

Thank you for this update @tabiva
I have gone through this change and I am no longer sure this is the best way forward (and I have added some explanation in the ticket-35502)

Note that this PR is missing some file header updates for the code snippets in the tutorial. 👍

[sarahboyce]

(I will close this PR for now, if after discussing the changes there is a decision to go forward, let's reopen)

[nessita]

Another data point is that Meta already worked on this during the DjangoCon Europe sprints, the PR is #18235.

[tabiva]

Hi @sarahboyce and @nessita , thank you for your feedbacks!