message: fix(content-item): update readme with links to imagewithcaption
diff: @@ -61,23 +61,15 @@ ReactDOM.render(<App />, document.querySelector('#app'));
  ### cta (optional)
  -| Name | Data Type | Description |
  -| ------- | --------- | --------------------------------------------------------- |
  -| `type` | String | Type of CTA (jump, local, or external) |
  -| `copy` | String | Text of the CTA component |
  -| `style` | String | 'text' style of the CTA is hardcoded into this subpattern |
  -
  Visit the
  [CTA documentation](https://ibmdotcom-react.mybluemix.net/?path=/story/components-cta--default)
  for more details on the CTA options.
  ### image (optional)
  -| Name | Data Type | Description |
  -| --------- | --------- | ---------------------------------------------------------------------------- |
  -| `images` | Array | Array of image spec objects including src of image and min-width breakpoint. |
  -| `default` | String | Default image, usually for largest breakpoint. |
  -| `alt` | String | Alt description of the image |
  +Visit the
  +[ImageWithCaption documentation](https://ibmdotcom-react.mybluemix.net/?path=/story/components-imagewithcaption--default)
  +for more details on the ImageWithCaption options.
  ## Stable selectors
  