Wikipedia celebrates its 18th birthday on January 15th 2019. To mark the occasion, the Wikimedia Library is calling on librarians all round the world to add one reference to Wikipedia between Jan 15th and Feb 5th 2019 because any citation to a reliable source is a benefit to Wikipedia readers worldwide.
This video demonstrates the first thing you need to do to get started: setup a Wikipedia account and switch on Wikipedia's new Visual Editor interface (which makes adding citations that much easier).
For more information on the #1lib1ref campaign please visit:
https://meta.wikimedia.org/wiki/The_Wikipedia_Library/1Lib1Ref