docs: sync from docs/ @ f585c385268567bb6c90c06c3af4c7749d39e538
docs: sync from docs/ @ 2a23218456eb9246f49d9f2644cf34c3437e74ce
Wiki body cross-doc links as page links (resolve on flat wiki)
Sync wiki from docs/: editions (universal-full/lite, per-abi), 21 languages, per-page switcher