Updates to quantization documentation (#30288)
Summary:
This pull request includes fixes for six quantization doc bugs.
https://github.com/pytorch/pytorch/issues/30283 - Rendering issue on QConfig
https://github.com/pytorch/pytorch/issues/26305 - Minor doc issue on fuse_modules()
https://github.com/pytorch/pytorch/issues/27451 - Issues with ConvReLU2d, ConvReLU3d, and LinearReLU doc issues
https://github.com/pytorch/pytorch/issues/26899 - Missing docstrings in torch.nn.intrinsic fused functions
https://github.com/pytorch/pytorch/issues/29735 - add discussion of QNNPack to quantization doc page
https://github.com/pytorch/pytorch/issues/27938 - some of the quantized functions lack documentation
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30288
Differential Revision: D18653368
Pulled By: gottbrath
fbshipit-source-id: 410b3dd81ff10909a7f1a7736ca42d7cabf0beb1
