adding a story of which we can provide a better clarification on how to use the FormControlMixin

Author: nielslyngsoe

packages/uui-base/lib/mixins/FormControlMixin.story.ts

@@ -0,0 +1,15 @@
+import '.';
+
+import { Story } from '@storybook/web-components';
+import { html } from 'lit-html';
+
+export default {
+  id: 'FormControlMixin',
+  title: 'Inputs/Form/FormControlMixin',
+};
+
+export const AAAOverview: Story = () =>
+  html`
+    <p>FormControlMixin can be used to make a web component part of a form.</p>
+  `;
+AAAOverview.storyName = 'Overview';