declare the Minimum Supported Rust Version and add a check for it in CI. the msrv was identified using cargo-msrv.
i also took the opportunity to fill the keywords and categories on the cargo manifest, and, more importantly, add a CI step for cargo-semver-checks. the crate is gaining more features and users (!!), it's important not to break semver expectations.
declare the Minimum Supported Rust Version and add a check for it in CI. the msrv was identified using
cargo-msrv.i also took the opportunity to fill the
keywordsandcategorieson the cargo manifest, and, more importantly, add a CI step forcargo-semver-checks. the crate is gaining more features and users (!!), it's important not to break semver expectations.Closes #180