To tell the truth, I think that it is only by having fun and trying that you will know how to use the software. But here are some little tips.
At first it was to quickly sort my data. Then I wanted to have fun. I started working on it then I found https://github.com/dataprofessor/vennlit's GitHub. So I joined the project. I added something new using https://github.com/LankyCyril/pyvenn, a fork of https://github.com/tctianchi/pyvenn. And I also thank InteractiVenn for inspiring me (http://doi.org/10.1186/s12859-015-0611-3).
If you encounter a problem, please send an email to [email protected] or [email protected] or use the https://github.com/Jumitti/vennlit_v2 issues.