Update README.md to add windmill as a supported by utility (nushell#16953)

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## Release notes summary - What our users need to know
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- [ ] Update the
[documentation](https://github.com/nushell/nushell.github.io)

Author: pguerin3

README.md

@@ -223,6 +223,7 @@ Please submit an issue or PR to be added to this list.
 -   [Direnv](https://github.com/direnv/direnv/blob/master/docs/hook.md#nushell)
 -   [x-cmd](https://x-cmd.com/mod/nu)
 -   [vfox](https://github.com/version-fox/vfox)
+-   [nushell](https://www.windmill.dev/docs/getting_started/scripts_quickstart/bash)
 
 ## Contributing