docs: sync from docs/ @ d778151ff7d94ea97610c11da68cfa639012a74b
docs: sync from docs/ @ fc7ff5f87ec91b615c4cbde9dfd9e7f8ccb678cd
docs: sync from docs/ @ 2a23218456eb9246f49d9f2644cf34c3437e74ce
Sync wiki from docs/: editions (universal-full/lite, per-abi), 21 languages, per-page switcher