* Add cosine cool down lr updater
* Use ema hook
* Update decay mult
* Update configs.
* Update T2T-ViT readme and format all readme
* Update swin readme
* Update tnt readme
* Add docstring for `CosineAnnealingCooldownLrUpdaterHook`.
* Update t2t readme and metafile
* Add model-pages
* Add shortname in configs
* Use link directly instead of `switch_language.md`
* Auto collapse model-zoo pages.
* Fix link in RegVGG
* Add link replace
* fix lint