* Add change log of v2.3.0

* change minimum required version of mmcv to 1.0.5

* rm tmp files

* Update docs

* Update docs and requirements

* clean comments

* update with 3392

* Bump to 2.2

* remove some

* update

* update

* update mmcv version

* Bump version to v2.1

* clean minor changes

* More specific change log and clean unnecessary items

* add 2947

* add python path in scripts

* Make python path work

* Shorter path

* Add docs

* Change dist scripts

* Change slurm example

* add v2.0 changelog

* minor updates

* add speedup percentage

* update changelog

* update the release date

* Add tutorials for V2.0

* Add details for dataset tutorial

* add tutorials in index.rst

* Add tutorials for concat data

* Modify documents

* More contents

* update version to 1.1

* fix typo

* remove the version limit of ubelt

* bump version to 1.0.0

* fix typos

* update the version in docs

* update to v1.0rc1

* update maintainers