storybook/docs/snippets/common/button-story-docspage-with-mdx.js.mdx

```js
// Button.stories.js|jsx|ts|tsx

import { Button } from './Button';

import CustomMDXDocumentation from './Custom-MDX-Documentation.mdx';

export default {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/7.0/react/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'Button',
  component: Button,
  argTypes: {
    backgroundColor: { control: 'color' },
  },
  parameters: {
    docs: {
      page: CustomMDXDocumentation,
    },
  },
};

export const Primary = {
  args:{
    backgroundColor: 'primary',
  },
};

export const Secondary = {
  args:{
     backgroundColor: 'secondary',
  },
};

export const Large =  = {
  args:{
    size:'large',
  }
};

export const Small = {
  args:{
    size:'small',
  },
};
```