2.3.0

🦑 This is a maintenance release focused primarily on improving unit test coverage and development workflow:

• Added dev container support for integration with GitHub Codespaces
• Moved man page generation to container image (using pandoc) and introduced a new supporting script tools/gen-doc, replacing the previous docs/gen-doc script
• Added initialisation tests and improved validation test coverage
• Several small improvements to GitHub Actions workflows

What's Changed

• Add initialisation tests by @marcransome in #107
• Remove redundant workflow step by @marcransome in #108
• Add link check config for failing URLs by @marcransome in #109
• Add missing validation tests by @marcransome in #110
• Add more validation tests by @marcransome in #111
• Reduce test container size by @marcransome in #112
• Add dev container support by @marcransome in #113
• Update README.md by @marcransome in #114
• Add security policy by @marcransome in #115
• Update markdown links workflow by @marcransome in #116
• Reorganise documentation by @marcransome in #117
• Update documentation install script by @marcransome in #118
• Add MOTD for dev container by @marcransome in #119
• Update dev container MOTD message by @marcransome in #120
• Add man page generation support to dev container by @marcransome in #121
• Bump version number for release by @marcransome in #122

Full Changelog: 2.2.0...2.3.0