No release automation

[mkantor]

I published v0.0.1 myself by running cargo publish from my laptop. It'd be better to trigger releases from a controlled environment where it can be guaranteed that CI checks have passed, etc.

This could be implemented as a GitHub Action that is triggered when a new version tag is pushed (or something along those lines). Here are a few examples of that sort of thing in the wild:

• https://github.com/rust-lang/chalk/blob/v0.25.0/.github/workflows/publish.yml
• https://github.com/BurntSushi/ripgrep/blob/12.1.1/.github/workflows/release.yml
• https://github.com/rust-analyzer/rust-analyzer/blob/2020-08-31/.github/workflows/release.yaml
• https://github.com/rust-analyzer/rust-analyzer/blob/2020-08-31/.github/workflows/publish.yml
• https://github.com/rust-github/template/blob/master/.github/workflows/cd.yml

[mkantor]

Ideally this would also involve building binaries for major platforms and hosting them somewhere (probably just GitHub releases).