Docker env not work, and need few modifications to run the code

[iLori-Jiang]

First of all, thanks for your amazing job.

However, when I try to run the code, I failed to use the docker environment that you provided.

After a long time struggling, I took modifications suggested by
(1) #66
(2) #33

Then build the conda environment from ./demo/environment.yaml, where I also met a package version conflict and I changed the NumPy to 'numpy==1.23.5' version.

What's more, the model that you provided in the HF are of '.bin' format, while in the 'gligen_inference.py' it will read the model in '.pth' format. What I did is to rename the model by the code, and change the reading format directly to '.bin' in the code.

After all these modifications, I can successfully run the inference and yield results. It would be nice if you could update the README to make the tutorial more clear, and I hope my struggle can help other people.