message: docs: add chocolatey install instructions
  Fixes:
diff: @@ -117,6 +117,15 @@ brew cask install etcher
  brew cask uninstall etcher
  ```
  +### Chocolatey (Windows)
  +
  +This package is maintained by [@majkinetor](https://github.com/majkinetor), and
  +is kept up to date automatically.
  +
  +```sh
  +choco install etcher
  +```
  +
  Support
  -------
  