* Update the discription about ViT and DeiT

* Fix the error file

* Unified data format

* add faq20210105

* add faq

* fix mainpage

* fix desc

* fix faq

* add 1230 FAQ

* modify according to comments

* change FAQ update date in readme

* add pretrained models

* fix typo

* fix trt doc

* update history

Fix some description of documentations

add se hrnet64_c

* fix download link

* fix dpn

* fix se resnext101 metrics

add GhostNet_x1_3_ssld_pretrained

* Update faq_2020_s1.md

* Update README_cn.md

* Update README.md

* Update README_cn.md

* Update update_history_en.md

* Update models_intro_en.md

* Update Inception_en.md

* Update Inception_en.md

* Update update_history.md

* Update models_intro.md

* Update Inception.md

* fix config doc

* fix mainpage link

* fix typo

add faq_2020_s1

add joinus

polish codes and docs to adapt Paddle2.0-rc

add pre-label function

fix readme