Merge pull request breezedeus#188 from breezedeus/dev

fix readthedocs error

Merge pull request breezedeus#182 from breezedeus/dev

fix: add vocab files when packaging

Merge pull request breezedeus#179 from breezedeus/dev

update docs

Merge pull request breezedeus#176 from breezedeus/dev

fix: dependencies for onnx and onnxruntime

Merge pull request breezedeus#160 from breezedeus/dev

v2.1: better models

update models, and bump ver to v2.0.1

remove comments

fix: model urls

bump ver

Merge pull request breezedeus#103 from breezedeus/dev-v1.2

fix: allow to initialize multiple instances