Support for windows

[jamestjat]

Hi,

I forked the repo and added Windows support (goreleaser builds windows/amd64 and windows/arm64 binaries). Mostly works, the only snag is the homebrew formula step fails with a 401 since it tries to push to sandover/homebrew-tap.

https://github.com/jamestjat/ergo

Happy to open a PR if you're interested, otherwise no worries.

[ToreAad]

I wanted to try ergo on windows, and could not get this repo to build. The branch of @jamestjat built fine on windows. Thanks!