How to convert the code in 0.4.1 to 1.1.0

I want to do mobilenetv1-yolov2 by this github project
but it is in 0.4.1 but my environment is in CUDA 10
so that I want to do modify the code little by little
but are there more documents to help this work except for the official documents about 1.1?
How people usually do it?