merge develop <-- main

[gem-cp]

This pull request contains several minor improvements and cleanups to documentation, spell-check configuration, and markdown checking scripts. The main focus is on improving the developer experience by clarifying documentation, refining script outputs, and updating custom word lists for spell checking.

Documentation and Developer Workflow Improvements:

• Improved CONTRIBUTING.md by adding a direct link to the "Contributing to ZETA" section, clarifying code block formatting (now using yaml for examples), and removing unnecessary blank lines for better readability. [1] [2] [3] [4] [5]
• Minor formatting corrections in docs/user-manual/Anleitungen/ZETA_Guard_Quickstart.md for consistency in configuration and directive lists. [1] [2]

Spell-Checking and Custom Word List Updates:

• Added new domain-specific terms (ANFTI, kubeconform, kubeval) to .cspell/zeta-words.txt to reduce false positives in spell checks. [1] [2]

Script and Tooling Enhancements:

• Enhanced scripts/check-markdown.sh by improving log messages, suppressing unnecessary output from tools, and providing clearer error reporting for link checks, markdown linting, and spell checking. Also, warnings for missing tools are now more concise. [1] [2] [3]
• Updated scripts/lychee.toml to reduce log verbosity for link checking, making script output less noisy by setting the logging level to warn.