message: Updated styleguide's description for ContentCard
  Implemented `...restProps` concept
diff: -import React, { FunctionComponent, ImgHTMLAttributes, ReactNode } from 'react';
  +import React, { FC, FunctionComponent, ImgHTMLAttributes, ReactNode } from 'react';
  import Card from '../Card/Card';
  import Caption from '../Typography/Caption/Caption';
  import Title from '../Typography/Title/Title';
  @@ -26,7 +26,7 @@ export interface ContentCardInfoProps {
  * */
  caption?: ReactNode;
  }
  -const ContentCardInfo: (props: ContentCardInfoProps) => JSX.Element = (props: ContentCardInfoProps) => (
  +const ContentCardInfo: FC<ContentCardInfoProps> = (props: ContentCardInfoProps) => (
  <div className="ContentCard--body">
  {props.subtitle && <Caption weight="semibold" level="3" caps style={{ marginBottom: 4, color: 'var(--text_secondary)' }}>{props.subtitle}</Caption>}
  {props.header && <Title weight="semibold" level="3" style={{ marginBottom: 4 }}>{props.header}</Title>}
  @@ -54,13 +54,14 @@ export interface ContentCardProps extends ImgHTMLAttributes<HTMLImageElement>, C
  mode?: 'tint' | 'shadow' | 'outline';
  }
  const ContentCard: FunctionComponent = (props: ContentCardProps) => {
  + const { subtitle, header, text, caption, className, image, disabled, mode, alt, ...restProps } = props;
  const platform = usePlatform();
  return (
  - <Card {...props} mode={props.mode} size="l" className={classNames(getClassname('ContentCard', platform))}>
  - <Tappable disabled={props.disabled}>
  - {props.image && <img src={props.image} alt={props.alt} className="ContentCard--img" style={{ objectFit: 'cover', maxHeight: props.maxHeight }} width="100%" />}
  - <ContentCardInfo {...props} />
  + <Card {...restProps} mode={mode} size="l" className={classNames(className, getClassname('ContentCard', platform))}>
  + <Tappable disabled={disabled}>
  + {image && <img src={image} alt={alt} className="ContentCard--img" style={{ objectFit: 'cover', maxHeight: props.maxHeight }} width="100%" />}
  + <ContentCardInfo subtitle={subtitle} header={header} text={text} caption={caption} />
  </Tappable>
  </Card>
  );
  