init project

docs/data/joy/components/checkbox/HelperTextCheckbox.js

@@ -0,0 +1,12 @@
+import Checkbox from '@mui/joy/Checkbox';
+import FormControl from '@mui/joy/FormControl';
+import FormHelperText from '@mui/joy/FormHelperText';
+
+export default function HelperTextCheckbox() {
+  return (
+    <FormControl>
+      <Checkbox label="Label" />
+      <FormHelperText>A description for the Checkbox.</FormHelperText>
+    </FormControl>
+  );
+}