Translations

Thanks to our wonderful volunteers, we're able to translate the course. This bug simply tracks the various efforts:

* #262
* #283
* #284
* #285
* #286
* #317
* #323
* #324
* #326
* #399
* #439
* #445
* #500
* #537
* #652
* #653
* #671
* #684
* #836
* #1451
* #1957

Please create more issues if you want to help translate the course!

How to get started?
- We have [instructions for getting started](https://github.com/google/comprehensive-rust/blob/main/TRANSLATIONS.md).
- We also have [instructions for reviewers](https://github.com/google/comprehensive-rust/blob/main/TRANSLATIONS.md#reviewing-translations).
- Some languages use a spreadsheet to distribute the work, see
#1957 for an example.

The Rust Book is already translated into a [number of languages](https://doc.rust-lang.org/book/appendix-06-translation.html). Please try to use the same terminology for your translations.

A great way to get started is to submit an almost-empty PO file for your language. That will ensure that you have the tooling setup and it will make it easier for others to jump in and help.

After a translation is merged, you can see the [translation status](https://google.github.io/comprehensive-rust/translation-report.html).