Useful documentation update for WebP writer ? - PHP 8.1 GD supports lossless WebP with IMG_WEBP_LOSSLESS as quality option

[atti-dall-atto]

Some space efficiency to be gained by using IMG_WEBP_LOSSLESS (101) instead of [-1,100]
https://php.watch/versions/8.1/gd-webp-lossless

e.g.

$writer = new WebPWriter();
[]
$webp_quality = [ "quality" => IMG_WEBP_LOSSLESS] ;
$result = $writer->write($qrCode, $logo, $label, $webp_quality);

Still nowhere near as good as some WebP lossless compressors can go; I managed to compress the GD-produced .webp from 2.48KB to 1.63KB with IrfanView 4.72 on default lossless settings.