README correction

README.md

@@ -97,7 +97,7 @@ The behaviour of the MODELFIRST build strategy can be further modified by supply
 ```typescript
 // Build FormGroup and Modeled Metadata, creating fields for any points mentioned in 
 // the metadata that don't occur in the model
-const { form, modeledMeta } = this.dynaform.build(model, meta);
+const { form, modeledMeta } = this.dynaform.build(model, meta, true);
 ```
 
 ### Callbacks