message: Add key props
diff: -import React from 'react';
  +import React, { Fragment } from 'react';
  import { flow } from 'lodash/fp';
  import { storiesOf } from '@storybook/react';
  import { withNotes } from '@storybook/addon-notes';
  import { withInfo } from '@storybook/addon-info';
  import withTests from '../../src/util/withTests';
  -import { Price } from '../../src';
  +import { Price } from '../../src/components/Price';
  import README from './README.md';
  storiesOf('Prices', module)
  @@ -13,7 +13,7 @@ storiesOf('Prices', module)
  .add(
  'Price',
  flow(withNotes(README), withInfo())(() => (
  - <div>
  + <Fragment>
  {/* Adding some vertical spacing between the children */}
  <style
  scoped
  @@ -25,17 +25,47 @@ storiesOf('Prices', module)
  `
  }}
  />
  - <Price currency="EUR" locale="de-DE" amount={9.99} />
  - <Price currency="EUR" locale="de-DE" amount={9} />
  - <Price currency="EUR" locale="de-DE" installments={9} amount={9.99} />
  - <Price currency="BRL" locale="pt-BR" installments={12} amount={9.99} />
  - <Price currency="USD" locale="en-US" amount={9.99} />
  - <Price currency="USD" locale="en-US" amount={49} />
  - <Price currency="USD" locale="en-US" amount={9999999} />
  - <Price currency="BRL" locale="pt-BR" amount={9.99} />
  - <Price currency="EUR" locale="de-AT" amount={9.99} color="error" />
  - <Price currency="EUR" locale="de-AT" amount={9.99} color="warning" />
  - <Price currency="EUR" locale="de-AT" amount={9.99} color="highlight" />
  - </div>
  + <Price key="1" currency="EUR" locale="de-DE" amount={9.99} />
  + <Price key="2" currency="EUR" locale="de-DE" amount={9} />
  + <Price
  + key="3"
  + currency="EUR"
  + locale="de-DE"
  + installments={9}
  + amount={9.99}
  + />
  + <Price
  + key="4"
  + currency="BRL"
  + locale="pt-BR"
  + installments={12}
  + amount={9.99}
  + />
  + <Price key="5" currency="USD" locale="en-US" amount={9.99} />
  + <Price key="6" currency="USD" locale="en-US" amount={49} />
  + <Price key="7" currency="USD" locale="en-US" amount={9999999} />
  + <Price key="8" currency="BRL" locale="pt-BR" amount={9.99} />
  + <Price
  + key="9"
  + currency="EUR"
  + locale="de-AT"
  + amount={9.99}
  + color="error"
  + />
  + <Price
  + key="10"
  + currency="EUR"
  + locale="de-AT"
  + amount={9.99}
  + color="warning"
  + />
  + <Price
  + key="11"
  + currency="EUR"
  + locale="de-AT"
  + amount={9.99}
  + color="highlight"
  + />
  + </Fragment>
  ))
  );
  