### Description

Include a description for your changes, including the motivation
behind them.

### Checklist

  - [ ] I've read [CONTRIBUTING.md](https://github.com/xmonad/xmonad/blob/master/CONTRIBUTING.md)

  - [ ] I tested my changes with [xmonad-testing](https://github.com/xmonad/xmonad-testing)

  - [ ] I updated the `CHANGES.md` file

  - [ ] I updated the `XMonad.Doc.Extending` file (if appropriate)