Merge branch 'chore/should-document-that' into 'develop'

Probably worth documenting the MediaProxy fix

See merge request pleroma/pleroma!2750

CHANGELOG.md

@@ -84,6 +84,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Rich Media Previews for Twitter links
 - Admin API: fix `GET /api/pleroma/admin/users/:nickname/credentials` returning 404 when getting the credentials of a remote user while `:instance, :limit_to_local_content` is set to `:unauthenticated`
 - Fix CSP policy generation to include remote Captcha services
+- Fix edge case where MediaProxy truncates media, usually caused when Caddy is serving content for the other Federated instance.
 
 ## [Unreleased (patch)]