link: Add more example cases

![2014-06-06_1716](https://cloud.githubusercontent.com/assets/1333220/3200464/c3c5136e-ed7c-11e3-8450-bc5e2c5e3f64.png)

https://github.com/bem/bem-components/blob/v2/desktop.pages/normal/normal.bemjson.js#L116
`{ tag: 'br' }`