Update blueprints, design docs and manual test instructions WRT Wikimedia fallback mirror
I don’t know how to handle the new URL in
- contribute/how/mirror.mdwn
- contribute/release_process/test.mdwn
- contribute/design/incremental_upgrades.mdwn
- contribute/design/mirrors.mdwn
- blueprint/HTTP_mirror_pool/archive.mdwn
- upgrade/v1/Tails/x.x/
- news/test*
- news/version*
Related issues
- Blocks #12833
Original created by @u on 15908 (Redmine)