Hello Trizek, Do you know how to activate or add a notice for mediawiki like in the photo? :
Link : ibb.co/pvCtkC5 ibb.co/VvXrfng
Hello Trizek, Do you know how to activate or add a notice for mediawiki like in the photo? :
Link : ibb.co/pvCtkC5 ibb.co/VvXrfng
Got it!
See m:CentralNotice. You will have to justify the need of a banner, and banners might not be the best medium for your project.
Have a good read at the Usage guidelines: banners are supposed to be a community request, to support a community event.