* Disable auto line-wrap in docs.
* Add model_zoo.md and CONTRIBUTING.md in docs.
* Revise getting_started.md and install.md
* Rewrite finetune.md
* Fix typo
* Imporve `finetune.md`
* Fix `GitHub` link
* Fix a small typo.
* Use build_runner in train api
* Support iter in eval_hook
* Add runner section
* Add test_eval_hook
* Pin mmcv version in install docs
* Replace max_iters with max_epochs
* Set by_epoch=True as default
* Remove trailing space
* Replace DeprecationWarning with UserWarning
* pre-commit
* Fix tests