### Description
Over the course of this quarter, we implemented multi-lingual support for REST API documentation through the REST Sandbox special page. As of today, the sandbox is only enabled on the testwiki. However, translation has already been happening across many languages. We would like to surface the translated experience to a handful of wikis that already have translation support, so that we may receive feedback from the community before launching to all wikis.
### Conditions of acceptance
* Enable the REST API Sandbox on an initial set of ~6 wikis:
* <List TBD>
* Announce launch on WikiTech News
* Announce limited launch on wikitech-l distro
#### Implementation details
The initial set of wikis will be selected based on existing translation support.
List of wikis with translations: https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/a0bb8b1f7e9d237026628906f7e61f1faee3af01/includes/Rest/i18n
Enabling the sandbox requires a configuration change.