Fix alignment/ids output

README.md

@@ -153,6 +153,11 @@ and column. Set `dataset: "*"` to apply an encoding to the same column name in
 any native topdata dataset; an exact dataset rule takes precedence over the
 wildcard rule for that column. Supported compact encodings include packed hex
 lists, external hex-list sidecar tables, alignment set masks, and ID hex lists.
+Explicit `{"alignments": [...]}` and `{"ids": [...]}` objects are portable in
+any native topdata dataset even without a column-specific rule; configured
+rules still override when a column needs custom bounds, widths, or alignment
+encoding mode. Plain `{"list": [...]}` objects remain config-driven because
+numeric lists need table-specific output semantics.
 
 Class spell availability can be authored as JSON spellbooks under
 `topdata/data/classes/spellbooks/`. Each file names a `classes:*` row, and the