updated the readme to include sponsorship links/logos
updated the readme to include sponsorship links/logos

hismightiness/dnnextensions,nvisionative/dnnextensions,nvisionative/dnnextensions,nvisionative/dnnextensions,hismightiness/dnnextensions,hismightiness/dnnextensions,nvisionative/dnnextensions,hismightiness/dnnextensions,hismightiness/dnnextensions,nvisionative/dnnextensions