docs: added README.nl.md file with Dutch translation

[Ch00rD]

Issue for this PR

docs: This PR does not refer to an existing 'issue'; it adds a README.nl.md file with Dutch translation (.nl = "Nederlands") of existing docs. It was initially translated by AI, then proof read and slightly edited for better readability by an excellent native speaker, then proofread once more by another native speaker who is already part of the dev team (confirmed in Discord chat). Note: this only changes human readable text in the modified markdown documentation files.

Closes #
(not applicable - this only changes human readable text in the modified markdown documentation files)

Type of change

• [FALSE] Bug fix
• [FALSE] New feature
• [FALSE] Refactor / code improvement
• [TRUE] Documentation

What does this PR do?

Please provide a description of the issue, the changes you made to fix it, and why they work. It is expected that you understand why your changes work and if you do not understand why at least say as much so a maintainer knows how much to value the PR.

If you paste a large clearly AI generated description here your PR may be IGNORED or CLOSED!

How did you verify your code works?

By reading it as en excellent native speaker, and having another native speaker who is already part of the dev team read it as well.

Screenshots / recordings

(not applicable - this only changes human readable text in the modified markdown documentation files)

If this is a UI change, please include a screenshot or recording.
(not applicable - this only changes human readable text in the modified markdown documentation files)

Checklist

• [TRUE] I have tested my changes locally
• [TRUE] I have not included unrelated changes in this PR

If you do not follow this template your PR will be automatically rejected.

[github-actions]

Hey! Your PR title Added README.nl.md file with Dutch translation to docs doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

This PR doesn't fully meet our contributing guidelines and PR template.

What needs to be fixed:

• No "Type of change" checkbox is checked. Please select at least one.
• Not all checklist items are checked. Please confirm you have tested locally and have not included unrelated changes.

Please edit this PR description to address the above within 2 hours, or it will be automatically closed.

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This pull request has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new pull request that follows our guidelines.