docs: document atlas language and directory map params

[OmarIthawi]

Description

This pull request is a documentation-only PR that I'll keep until all other PRs are merged. This helps to make incremental PRs faster while keeping documentation ready at the same time.

Documents new params:

• --dry-run (not included anymore)
• --filter (for languages filtering)
• --directory arg replacement

Related PRs

This section is being updated to collect all related PRs:

• https://github.com/openedx/openedx-atlas/pull/11 (not included, anymore in this docs PR)
• https://github.com/openedx/openedx-atlas/pull/12
• https://github.com/openedx/openedx-atlas/pull/13

References

This pull request is part of the FC-0012 project which is sparked by the Translation Infrastructure update OEP-58.

Check the links above for full information about the overall project.

Internalization is being rearchitected in Open edX Python, XBlock, Micro-frontend, and other projects. There are a number of immediately visible changes:

• Remove source and language translations from the repositories, hence no .json, .po or .mo files will be committed into the repos.
• Add standardized make extract_translations in all repositories
• Push user-facing messages strings into openedx/openedx-translations.
• Integrate root repositories with openedx/openedx-atlas to pull translations on build/deploy time

[openedx-webhooks]

Thanks for the pull request, @OmarIthawi! Please note that it may take us up to several weeks or months to complete a review and merge your PR.

Feel free to add as much of the following information to the ticket as you can:

• supporting documentation
• Open edX discussion forum threads
• timeline information ("this must be merged by XX date", and why that is)
• partner information ("this is a course on edx.org")
• any other information that can help Product understand the context for the PR

All technical communication about the code itself will be done via the GitHub pull request interface. As a reminder, our process documentation is here.

Please let us know once your PR is ready for our review and all tests are green.

[openedx-webhooks]

@OmarIthawi 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.