Make documentation standalone and generalize examples

docs/reference/node-types.md

@@ -377,7 +377,7 @@ name of its own, in the node panel's port name field or as
 | `model` | empty | the trained model, an artifact digest; empty runs wren's demo model |
 | `min_confidence` | empty | the confidence a call needs; empty takes the model's own threshold |
 | `targets` | empty | by target port, what the model is told of it and how far it is trusted (below) |
-| `aliases` | empty | your own words, or words the recogniser hears wrong, in the model's: `{"traverse": "living room light", "page too": "patio"}` |
+| `aliases` | empty | map your own names to the model's target names, such as `{"desk lamp": "office light"}` |
 | `examples` | empty | for training only, commands to learn beyond the ones wren generates (below) |
 | `tests` | empty | for training only, commands a new model is scored on (below) |