diff --git a/superfields/README.md b/superfields/README.md
index ebe0563..d456a11 100644
--- a/superfields/README.md
+++ b/superfields/README.md
@@ -110,7 +110,11 @@ A `CustomField<Object>`. It checks the type of the value passed to it and attemp
 
 A `CustomField<T>` capable of building components and matching them with object's properties. Once configured it is basically an automated form generator. This component is highly configurable and details on how to use it are present in [the project's wiki](https://github.com/vaadin-miki/super-fields/wiki).
 
-In most common cases one would use `ObjectFieldFactory` to create and configure `ObjectField`, and then annotate data model class with the additional information. Please consult the demo application or the tests (`ObjectFieldTest` and `NestedObjectFieldTest`) for details. 
+In most common cases one would use `ObjectFieldFactory` to create and configure `ObjectField`, and then annotate data model class with the additional information. Please consult the demo application or the tests (`ObjectFieldTest`, `NestedObjectFieldTest` and `EnumObjectTest`) for details. Also please note that [`ObjectFieldFactory` will become a separate library](https://github.com/vaadin-miki/super-fields/issues/401) at some point in the future. 
+
+### `SuperCheckbox`
+
+It is known that [`Checkbox` does not support read-only mode](https://github.com/vaadin/web-components/issues/688). This component exists as a workaround and binds `enabled` and `readOnly` as one: setting the checkbox to read-only will disable it. 
 
 ## Select fields