* Generalized OHEM

* remove config

* update docstring

* fixed sort prob

* fixed valid_mask

* Support FP16

* add miss folder

* add tests

* remove useless config

* update memory

* reduce config

* migrate fp16 to mmcv

* add model link

* add test tutorial

* remote torch/torchvision from requirements

* update getting started

* rename drop_out_ratio -> dropout_ratio

* add badge

* Created using Colaboratory

* add read docs

* Fixed readthedocs

* fixed colab ref

* add readthedocs.txt

* add link

* fixed modelzoo link

* add missing reference

* fixed docs

* remove relative path in docs

* add colab in README.md

* update docker image

* add newline

* fixed br