Add installation steps to readme
Since I had to do this myself and I found the readme lacking in this regard, I figured this could be a nice addition for new users
No, you don't need to do that, as the systemd .service comes with it. When you compile, you can even define on CMake if you want a system user service or system service...
If you get the code, compile and install it using cmake, you're going to have the .service files in place, depending on what you chose during compilation... You may need to edit it to your liking, but there's no need to add this into the README, may cause confusion
since Ubuntu isn't using a newer version, the .service was missing for me too. But that's Ubuntu's problem