Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  89108a0cb6427f00649f4f164cc366a90a95ec8e

RepoApi.js: Links to documentation added.

Change-Id: Ie0227d82592752da7335316aa3392967317d333d
Also: Changed «snaks» to «snak's» where not plural but genitive.