How can someone contribute to dhis2 documentation

Hello everyone, I just want to say that I needed to understand and learn from dhis2 database, tables, their significance & inter-relations and due to the lack of documentation for this stuff I found myself in need to go through the database and codebase multiple times to figure that out along with the modules and how they are interconnected If there was documentation documenting this type of stuff, it would’ve made other’s life easier, However, I wonder If I could document while reading so others may get benefited from the time I spent, anyone besides me needing this stuff gets documented??, and If I want with others who have information about this stuff to help to document it, how and where to help?.