andros fb45f6a582 README: replace mermaid xychart with grouped-bar images ...

Mermaid's xychart-beta cannot draw grouped bars or a legend: two bar
series overlap on the same axis position, so the paired GPU-vs-cairo
comparison was unreadable. Render the charts as images with real
grouped bars, value labels and a legend (bench/make-charts.py), and
embed them from .github/assets/.

2026-07-24 11:38:01 +02:00

26 KiB

1260x420px

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