I have some private repositories on gitlab.com and I want to render plantuml diagrams in my markdown files there. But I cannot find any information about how to do it.
Here https://docs.gitlab.com/ce/administration/integration/plantuml.html it is said that I need to enable plantuml integration, but there is no such integration in my project integration settings.
Another tip I found is http://uml.mvnsearch.org/index_gitlab.jsp but it is said there that I need to add plantuml as my project developer member. But I cannot find user plantuml on gitlab.com!
So, how can I render plantuml diagrams on gitlab.com?