Update _updates/2019-12-11-december.md
Update _updates/2019-12-11-december.md

Co-Authored-By: Zoltán Bedi <af1a6e936c8cd291cb5642b11ffc035fda242389@gmail.com>
SenseNet/sensenet.github.io,SenseNet/sensenet.github.io,SenseNet/sensenet.github.io