Wrong. Both Koran and Qu’ran are used widely. I just didn’t feel like writing Qu’ran at the moment, so I opted for the easiest way to write it and convey the same meaning.
We spell it Koran in Slovenia
So do we in the Netherlands. Even the Muslims here do it.
“Koran”, “Qur’an”, and the many other spellings out there are wrong because they use Latin/Roman alphabet. Accordingly, the only correct spelling is in the Arabic script. Same with words like “Hanukkah” for the same reason in Hebrew…