Refer to the new radios/checkboxes in govuk-elements

The comment was still talking about the old ‘block label’ style inputs.

public/sass/_govuk-elements.scss

@@ -46,7 +46,7 @@
 @import "elements/details";                       // Details summary
 @import "elements/panels";                        // Panels with a left grey border
 @import "elements/forms";                         // Form - wrappers, inputs, labels
-@import "elements/forms/form-multiple-choice";    // Chunky labels for radios and checkboxes
+@import "elements/forms/form-multiple-choice";    // Custom radio buttons and checkboxes
 @import "elements/forms/form-date";               // Date of birth pattern
 @import "elements/forms/form-validation";         // Errors and validation
 @import "elements/breadcrumbs";                   // Breadcrumbs