Update AUTHORS.txt
Update AUTHORS.txt

New German translator on Transifex, welcome aboard!
MiczFlor/Booktype,olegpshenichniy/Booktype,sourcefabric/Booktype,danielhjames/Booktype,eos87/Booktype,olegpshenichniy/Booktype,ride90/Booktype,kronoscode/Booktype,olegpshenichniy/Booktype,MiczFlor/Booktype,danielhjames/Booktype,ride90/Booktype,olegpshenichniy/Booktype,eos87/Booktype,sourcefabric/Booktype,eos87/Booktype,ride90/Booktype,sourcefabric/Booktype,sourcefabric/Booktype,eos87/Booktype,kronoscode/Booktype,kronoscode/Booktype,danielhjames/Booktype,eos87/Booktype,MiczFlor/Booktype,danielhjames/Booktype,danielhjames/Booktype,sourcefabric/Booktype,MiczFlor/Booktype,ride90/Booktype,kronoscode/Booktype,MiczFlor/Booktype,olegpshenichniy/Booktype,kronoscode/Booktype,ride90/Booktype