The docs include diagrams created with plantuml, you will need to compile them after they are updated.
Before you can compile those, you will require some dependencies:
graphvizwhich can be installed withapt install graphviz- Download
plantuml.jarfrom the official site.
Then, you can execute this to generate them all:
java -jar ~/Downloads/plantuml.jar ./diagram-sources -o ../assets/diagrams/
Consider using the plantuml plugin for IntelliJ when editing diagrams, this way, you can preview the changes.