Apply suggestion from @ahpook

Co-authored-by: Eric Sorenson <ahpook@github.com>

Author: piratabrasileiro1

topics/wikidata/index.md

@@ -4,4 +4,4 @@ short_description: Wikidata is free and open knowledge base
 related: wikipedia
 topic: wikidata
 ---
-wikidata is a databased by wikipedia created in 2012, used to give general information for the website and other projects.
+Wikidata is a database by wikipedia created in 2012, used to give general information for the website and other projects. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wiktionary, Wikisource, and others.