The way the job texts are generated is currently a mix of C++ code and text loaded from xml files. The XML part is something that can be edited with a normal text editor, e.g. notepad++. You can find these files in `Resources/Data/Jobs`. If you are unsure how to edit the XML files, just ask here or on the discord (if you can join).
Feel free to share your new text versions, I'm happy to integrate new texts into the game to improve its variety.