* Add LLM, AI and tool usage section to contribution guide.
* Word order and punctuation.
* Add suggestions.
- No bot PRs
- Define "Large" code contribution
Also try to disuade users from using AI for one-line or simple changes, instead
preferring to treat that as "feedback" and rewrite instead.
* Remove wiggle room for any AI code in the Janet runtime.
Still leave open the possibity for AI / tool usage for static analysis
and bug repots. However, the 5-15 lines of code limitation is fuzzy and
arbitrary. We can just say no.
* Remove word.