docs: close the final review's four documentation residues

precedence_ef.mli said "there is no fifth, unclassified case" after the
same commit renumbered the disposition list from four cases to five; the
count is now six.

precedence.mli's physical-equality obligation described the failure mode
as counting a drop "a SECOND time (once because it is genuinely absent,
once because its identity no longer matches)" -- the same condition
stated twice. What actually happens to a rebuilt candidate record is
that the celebration surfaces in BOTH commemorations (the copy) and
omitted (the original), one admission double-reported. precedence_ef.ml
carried the same muddled sentence, which is where the kernel's copy came
from; both now say it plainly.

vocab.ml/.mli referenced {!Rite_ef.rite_ef.ml} -- a filename inside an
odoc reference, which is malformed. Now plain [Rite_ef.rite].

README documented only `dune test`, so the exhaustive 1583-9999 Validate
sweep was discoverable only by reading test_validate.ml's own comment.
With no CI in this repo, that line is what stands between a committed
artifact and one anyone runs.

No behaviour change: `colitur day` output is byte-identical across 1583,
1900, 1902, 2008, 2011, 2026, 2038 and 9999 (2921 days, both domain
edges). 259 tests by default, 260 with the sweep.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/kernel/vocab.ml b/lib/kernel/vocab.ml
index bcb48b8..a4e61a3 100644
--- a/lib/kernel/vocab.ml
+++ b/lib/kernel/vocab.ml
@@ -14,7 +14,7 @@ type ('s, 'r) t = {
           carried item 1: EF has each season in one run, but the modern
           form's Ordinary Time does not, so the expected run sequence had
           to become rite-supplied rather than derived from this field).
-          For EF specifically {!Rite_ef.rite_ef.ml} sets season_runs to
+          For EF specifically [Rite_ef.rite] sets season_runs to
           this very list, so the two happen to agree there, but Validate
           itself no longer reads [seasons] to build its expectation. *)
   season_to_string : 's -> string;