* Add german book: "PyQt und PySide - Anwendungsentwicklung mit Python und Qt"

* Correct formatting issues

* Swap line 192 with 191 to ensure right alphabetical order(Q comes before t)

* Add missing authors and format link/notes correctly

- as suggested by davorpa -
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>
Co-authored-by: NSebastian Neumeier <neumeise1@mail.de>
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>