It's out there

What's Changed

• Error on unbalanced step braces by @leynos in #107
• Error on unbalanced step braces by @leynos in #112
• Support #[datatable] attribute for step parameters by @leynos in #105
• Introduce structured StepError and test wrappers by @leynos in #104
• Escape unknown backslash sequences by @leynos in #106
• Document step pattern parsing sequence by @leynos in #117
• Normalise missing directory error message by @leynos in #118
• Add dedicated placeholder syntax error and brace tests by @leynos in #116
• Remove runtime dependency from macros crate by @leynos in #119
• Handle And/But keywords and improve diagnostics by @leynos in #121
• Implement ToTokens for StepKeyword and normalise And/But by @leynos in #129
• Remove runtime crate dependency from macros by @leynos in #130

Full Changelog: v0.1.0-alpha1...v0.1.0-alpha2