docs(base): Update Closure Compiler annotation doc (#1395)
docs(base): Update Closure Compiler annotation doc (#1395)

- Conform examples to Closure style guide.
- Make examples follow the guide's own recommendations.
anton-kachurin/material-components-web,material-components/material-components-web,material-components/material-components-web,material-components/material-components-web,anton-kachurin/material-components-web