[Docs] Add Chinese version of model_zoo (#5827)

* finish Common Setting

* Finish ImageNet Pretrained Models

* finish baseline

* finishi Speed Benchmark

* Finish Comparison with Detectron2

* Fix 中文 English 中文 and some mistakes

* Modified docs/model_zoo.md

* regenerate the tables

* fix 中文数字中文 problem

* fix mistakes

* Fix markdownlint errors

docs/model_zoo.md

@@ -2,7 +2,7 @@
 
 ## Mirror sites
 
-We only use aliyun to maintain the model zoo since MMDetection V2.0. The model zoo of V1.x remains in AWS and will be deprecated in the future.
+We only use aliyun to maintain the model zoo since MMDetection V2.0. The model zoo of V1.x has been deprecated.
 
 ## Common settings