GitLab

* Refine docs and license

* Change order of install

* Clean unnecessary requirements

* Install mmdet manually in readthedocs

* delete mmdet install

* reformat docstring in code

* Refine docs

* Reformat

* fix format issue

* Update doc requirements

* Resolve API issue in readthedocs

* Fix package order

* Update requirements

* Update sphinx

* Add mock

* Fix setup missing

* Update docs

Update configs/pointpillars/hv_pointpillars_secfpn_sbn-all_4x8_2x_lyft-3d.py, configs/regnet/hv_pointpillars_regnet-400mf_secfpn_sbn-all_4x8_2x_lyft-3d.py, configs/_base_/datasets/lyft-3d.py files

Deleted docs/tutorials/data_pipeline.md