Change code highlighting colors' contrast for better a11y
Change code highlighting colors' contrast for better a11y

See https://dequeuniversity.com/rules/axe/1.1/color-contrast

MaximeKjaer/kjaer.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaer.io,MaximeKjaer/kjaermaxi.me,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/MaximeKjaer.github.io,MaximeKjaer/kjaermaxi.me