Update readme to indicate non-AMD discrete GPU support
Update readme to indicate non-AMD discrete GPU support

While development and testing are primarily done on AMD GCN-based GPUs,
TressFX is designed to also run on non-AMD DirectX 11 discrete GPUs.

GPUOpen-Effects/TressFX,mrgreywater/TressFX,GPUOpen-Effects/TressFX,vlj/TressFX,GPUOpen-Effects/TressFX,vlj/TressFX,mrgreywater/TressFX,mrgreywater/TressFX,vlj/TressFX