Rename "Zero JS Output" to "JS-Free Rich Content" with footnote explaining that all generators can produce JS-free basic HTML—sukr's distinction is built-in build-time math and diagram rendering.
- Create comparison.md documenting sukr vs Zola/Hugo/Eleventy - Feature matrix covers highlighting, math, diagrams, JS, binary - Add condensed comparison table to README - Link to full comparison page at sukr.io