Additional quantization docs + fixes

docs-src/docs/algo_pruning.md

docs-src/docs/algo_quantization.md

docs-src/docs/quantization.md

docs-src/mkdocs.yml

docs/404.html

docs/algo_pruning/index.html

docs/algo_quantization/index.html

docs/design/index.html

docs/index.html

docs/install/index.html

docs/jupyter/index.html

docs/model_zoo/index.html

docs/pruning/index.html

docs/quantization/index.html

docs/regularization/index.html

docs/schedule/index.html

docs/search.html

docs/search/search_index.json

docs/sitemap.xml

docs/usage/index.html