Quantization: add API summary section (#45093)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45093
This adds a tl;dr; style summary of the quantization API
to the documentation. Hopefully this will make this easier
for new folks to learn how to use quantization.
This is not meant to be all-encompassing. Future PRs
can improve the documentation further.
Test Plan:
1. build the doc as specified in https://github.com/pytorch/pytorch#building-the-documentation
2. inspect the quantization page in Chrome, format looks good
Reviewed By: jerryzh168
Differential Revision: D23828257
Pulled By: vkuzo
fbshipit-source-id: 9311ee3f394cd83af0aeafb6e2fcdc3e0321fa38
