Eight citations named §5.1, §5.2 and a §5 selector language that
requirements.md's §5 has not contained since it became a pointer at
architecture.md; two named §9 for the golden images and the benchmark
suite, which are §8; and the three pointers into architecture.md were
each one section off. All now name the section that holds the thing.
architecture.md §12's subsections are numbered 6.1–6.13, colliding with
its real §6. That numbering is what every ARCH §6.n citation in the tree
uses, so it stays, and a note at the head of §12 says so instead of
leaving the next reader to work it out.
FR-DEV-3f's open question about persisting the film stock was answered
in sidecar.rs; the clause now says so.
dtourolle
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