FlatPak Link in readme

[azaslavskis]

Just made research and found flatpak for your project. Maybe it is an option to had flatpak option to install. It is provided by @nbenitez I think it can increase the audience of the software users.

https://flathub.org/apps/details/com.github.mgropp.PdfJumbler
https://github.com/flathub/com.github.mgropp.PdfJumbler