message: feat(api): show property defaults
  closes
diff: @@ -100,7 +100,8 @@ const renderProperties = (properties = []) => {
  Head: prop => prop.name,
  Description: prop => <div innerHTML={prop.docs}/>,
  Attribute: prop => prop.attr ? <code>{ prop.attr }</code> : null,
  - Type: prop => <code>{ prop.type }</code>
  + Type: prop => <code>{ prop.type }</code>,
  + Default: prop => prop.default ? <code>{ prop.default }</code> : null
  }}/>
  </section>
  );
  