* docs: add "Why opencli?" section and comparison guide (#238)
- Add "Why opencli?" section to README.md and README.zh-CN.md
(between Highlights and Prerequisites)
- Add docs/comparison.md with 5-scenario honest evaluation
- Add Comparison entry to VitePress sidebar
* docs: refine positioning — use approximate numbers, emphasize broad coverage
- Replace specific counts (300+, 55, 20+) with approximate descriptions
- Emphasize broad global + Chinese platform coverage instead of singling out Chinese sites
- Fix Firecrawl description to mention self-hosted option
- Replace "sub-second" / "milliseconds" with accurate "seconds" / "fast deterministic"
- Add testing and AI workflow to Further Reading links
- Add "easy to extend" point to strengths
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Co-authored-by: jackwener <jakevingoo@gmail.com>
AstroHan