message: Automatically switch to link if href present
diff: +import React from 'react'
  import styled, { css } from 'styled-components'
  import { themeGet } from 'styled-system'
  import chroma from 'chroma-js'
  @@ -62,4 +63,5 @@ export const FilledButtonLink = styled.a`
  ${mixin}
  `
  -export default FilledButton
  +export default ({ href, ...rest }) =>
  + href ? <FilledButtonLink href={href} {...rest} /> : <FilledButton {...rest} />
  