Invalid syntax in example for response property under Reusing Responses section

[jpierson-at-riis]

The response property I believe should be responses under the Reusing Responses section of the documentation page for Describing Responses. I've included a snippet of the portion of the example spec below for reference.

paths:
  /users:
    get:
      summary: Gets a list of users.
      response:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ArrayOfUsers'
        '401':
          $ref: '#/components/responses/Unauthorized'   # <-----