storybook/docs/snippets/vue/list-story-with-sub-components.2.js.mdx

```js
// List.stories.js

import List from './List.vue';
import ListItem from './ListItem.vue';

export default {
  component: List,
  subcomponents: { ListItem }, //👈 Adds the ListItem component as a subcomponent
};

export const Empty = {
  render: (args, { argTypes }) => ({
    props: Object.keys(argTypes),
    components: { List },
    template: '<List v-bind="$props"/>',
  }),
};

export const OneItem = {
  render: (args, { argTypes }) => ({
    props: Object.keys(argTypes),
    components: { List, ListItem },
    template: '<List v-bind="$props"><ListItem /></List>',
  }),
};
```