Spell a reference path as arm.isRefPath, and say where each tail's head is held

todo.md

@@ -56,9 +56,7 @@ This round, in order:
   which differs from the `pathCheck` type it wraps by word order alone: both architects
   placed them wrong.
 - Correct the claims readers followed wrong: `IsTemplate`'s doc says an argument holding
-  a bracket that is not valid JSON errors, where `misc.territory[SE]` is a path; `arm`'s
-  says a tail's head is drawn once per expansion, where a reference path is held per
-  render; the README says rows are indexed on the first draw, where `New` builds the key
+  a bracket that is not valid JSON errors, where `misc.territory[SE]` is a path; the README says rows are indexed on the first draw, where `New` builds the key
   map; and `loadDir`'s says it builds the tree deterministically, where it reports an
   unnamed rows file in map order.
 - Delete the comments the panel found restating their code or arranging the file: