📝 Add discussion template for new language translation requests (#13535)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

.github/DISCUSSION_TEMPLATE/translations.yml

@@ -0,0 +1,45 @@
+labels: [lang-all]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for your interest in helping translate the FastAPI docs! 🌍
+
+        Please follow these instructions carefully to propose a new language translation. 🙏
+
+        This structured process helps ensure translations can be properly maintained long-term.
+  - type: checkboxes
+    id: checks
+    attributes:
+      label: Initial Checks
+      description: Please confirm and check all the following options.
+      options:
+        - label: I checked that this language is not already being translated in FastAPI docs.
+          required: true
+        - label: I searched existing discussions to ensure no one else proposed this language.
+          required: true
+        - label: I am a native speaker of the language I want to help translate.
+          required: true
+  - type: input
+    id: language
+    attributes:
+      label: Target Language
+      description: What language do you want to translate the FastAPI docs into?
+      placeholder: e.g. Latin
+    validations:
+      required: true
+  - type: textarea
+    id: additional_info
+    attributes:
+      label: Additional Information
+      description: Any other relevant information about your translation proposal
+  - type: markdown
+    attributes:
+      value: |
+        Translations are automatized with AI and then reviewed by native speakers. 🤖 🙋
+
+        This allows us to keep them consistent and up-to-date.
+
+        If there are several native speakers commenting on this discussion and
+        committing to help review new translations, the FastAPI team will review it
+        and potentially make it an official translation. 😎

docs/en/docs/contributing.md

@@ -315,30 +315,47 @@ Now you can translate it all and see how it looks as you save the file.
 
 Some of these files are updated very frequently and a translation would always be behind, or they include the main content from English source files, etc.
 
+#### Request a New Language
+
+Let's say that you want to request translations for a language that is not yet translated, not even some pages. For example, Latin.
+
+If there is no discussion for that language, you can start by requesting the new language. For that, you can follow these steps:
+
+* Create a new discussion following the template.
+* Get a few native speakers to comment on the discussion and commit to help review translations for that language.
+
+Once there are several people in the discussion, the FastAPI team can evaluate it and can make it an official translation.
+
+Then the docs will be automatically translated using AI, and the team of native speakers can review the translation, and help tweak the AI prompts.
+
+Once there's a new translation, for example if docs are updated or there's a new section, there will be a comment in the same discussion with the link to the new translation to review.
+
 #### New Language
 
-Let's say that you want to add translations for a language that is not yet translated, not even some pages.
+/// note
 
-Let's say you want to add translations for Creole, and it's not yet there in the docs.
+These steps will be performed by the FastAPI team.
+
+///
 
-Checking the link from above, the code for "Creole" is `ht`.
+Checking the link from above (List of ISO 639-1 codes), you can see that the 2-letter code for Latin is `la`.
 
-The next step is to run the script to generate a new translation directory:
+Now you can create a new directory for the new language, running the following script:
 
 <div class="termy">
 
 ```console
 // Use the command new-lang, pass the language code as a CLI argument
-$ python ./scripts/docs.py new-lang ht
+$ python ./scripts/docs.py new-lang la
 
-Successfully initialized: docs/ht
+Successfully initialized: docs/la
 ```
 
 </div>
 
-Now you can check in your code editor the newly created directory `docs/ht/`.
+Now you can check in your code editor the newly created directory `docs/la/`.
 
-That command created a file `docs/ht/mkdocs.yml` with a simple config that inherits everything from the `en` version:
+That command created a file `docs/la/mkdocs.yml` with a simple config that inherits everything from the `en` version:
 
 ```yaml
 INHERIT: ../en/mkdocs.yml
@@ -350,11 +367,11 @@ You could also simply create that file with those contents manually.
 
 ///
 
-That command also created a dummy file `docs/ht/index.md` for the main page, you can start by translating that one.
+That command also created a dummy file `docs/la/index.md` for the main page, you can start by translating that one.
 
 You can continue with the previous instructions for an "Existing Language" for that process.
 
-You can make the first pull request with those two files, `docs/ht/mkdocs.yml` and `docs/ht/index.md`. 🎉
+You can make the first pull request with those two files, `docs/la/mkdocs.yml` and `docs/la/index.md`. 🎉
 
 #### Preview the result