Results 2 issues of Julius

Hello, I updated the README.md with Docker and Podman instructions due to [my previous MR](https://github.com/axeleroy/self-host-planning-poker/pull/200) and to keep the instructions in sync. Cheers, Julius

Hi there, I saw your posts at https://github.com/xsco/libdjinterop/issues/15 and https://github.com/mixxxdj/mixxx/issues/9463 and I tested your work. I don't know what the goal of the project is (if there is any) but...