#168: correct the audit's MISSING claim — the feature is documented, its index row was not

The memberHerdrSocket section exists at 11-Features.md:2174; what was absent was
its row in the index table. My omission when I added the section. Wiki fixed at
b24965c.

docs/wiki-audit.md

@@ -186,11 +186,18 @@ Chapter 13 now owns run and recovery instructions.
 
 ## MISSING
 
-`11-Features.md` has no entry for **routing members through a separate herdr daemon**
-(#185). Operators can set `memberHerdrSocket`; member spawn and member status use that
-daemon, and `/healthz` becomes degraded if either the lead or member daemon is down.
-Evidence: `FleetConfig.java:34-37` and `FleetApp.java:103-115`, `210-245`, and
-`247-263`. Add one chapter-11 entry with the knob, why, and the two-daemon health gotcha.
+`11-Features.md` has a body section for **routing members through a separate herdr daemon**
+(`## memberHerdrSocket`, line 2174), but **no row in the index table** at the top of the page
+(lines 20-95). That table is how the page is meant to be read, so a capability absent from it is
+effectively undiscoverable. Lead note: this is my own omission — I added the section on 2026-08-31
+and did not add the matching row. Fixed in the wiki at `68e32c6`'s successor.
+
+The original audit stated the feature had no entry at all. That was wrong: the section exists. The
+gap is the index row. Recorded here rather than silently corrected, because the difference matters —
+"undocumented" and "documented but unindexed" are different jobs.
+
+Evidence for the feature itself: `FleetConfig.java:34-37` and `FleetApp.java:103-115`, `210-245`,
+and `247-263`.
 
 ## Audit method and coverage