The module-catalogue table in README.md was committed without prettier's
alignment, so the treefmt formatting flake check fails. This has left
CI (nix flake check) red on main since the #56 docs merge and blocks
every PR that triggers the full check.
Reformat with the flake's pinned formatter; no content change.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>