When the project includes some 3D renderer the readme needs also to include some screenshots.
You'll have to unprotect the branch to force push to GitHub, and anyone who has already cloned the repo may not appreciate basically having to start over, so better to get it over with ASAP!
I wonder if GitHub support would be helpful. I don't know if asking them to do a 're-pack' would be beneficial.
P.S. thanks for open sourcing this!