message: chore(docs): update ContentBlockSimple story; fixes
diff: import './index.scss';
  -import { text, withKnobs } from '@storybook/addon-knobs';
  +import { select, text, withKnobs } from '@storybook/addon-knobs';
  import ContentBlockSimple from '../ContentBlockSimple';
  import React from 'react';
  import readme from '../README.md';
  @@ -27,6 +27,7 @@ storiesOf('Patterns (Blocks)|ContentBlockSimple', module)
  };
  const image = {
  + image: {
  heading: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
  image: {
  sources: [
  @@ -46,6 +47,8 @@ storiesOf('Patterns (Blocks)|ContentBlockSimple', module)
  alt: 'Image alt text',
  defaultSrc: 'https://dummyimage.com/672x378/ee5396/161616&text=16:9',
  },
  + },
  + none: null,
  };
  const copy = `Lorem ipsum *dolor* sit amet, consectetur adipiscing elit. Aenean et ultricies est.
  @@ -68,7 +71,7 @@ storiesOf('Patterns (Blocks)|ContentBlockSimple', module)
  'Heading (required)',
  'Curabitur malesuada varius mi eu posuere'
  )}
  - image={image}
  + image={select('Image (optional)', image, image.image)}
  cta={ctaProps}
  />
  </div>
  