by replacing references to the `Boolean` component with `Checkbox`
and adding the RadioButton reference
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
//!
//! The following field types are available.
//!
-//! - [widget::form::Boolean]: Checkbox input element, which stores values as boolean.
-//! - [widget::form::Checkbox]: Checkbox or Radiobox field, which stores values as strings.
+//! - [widget::form::Checkbox]: Checkbox input element, which stores values as boolean by default.
+//! - [widget::form::RadioButton]: RadioButton field, which stores values as strings.
//! - [widget::form::Combobox]: Select value from a list of options.
//! - [widget::form::DisplayField]: Just display values (not editable).
//! - [widget::form::Field]: Wrapper around standard Html fields.