add introduction

docs/zh_CN_tmp/introduction/function_intro.md

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+## PaddleClas 功能特性
+
+飞桨图像识别套件 PaddleClas 是飞桨为工业界和学术界所准备的一个图像识别任务的工具集，助力使用者训练出更好的视觉模型和应用落地。具体地，它包含以下几个核心特性。
+
+
+- 实用的图像识别系统：集成了目标检测、特征学习、图像检索等模块，广泛适用于各类图像识别任务。
+提供商品识别、车辆识别、 logo 识别和动漫人物识别等4个场景应用示例。
+
+- 丰富的预训练模型库：提供了 35 个系列共 164 个 ImageNet 预训练模型，其中 6 个精选系列模型支持结构快速修改。
+
+- 全面易用的特征学习组件：集成 arcmargin , triplet loss 等 12 度量学习方法，通过配置文件即可随意组合切换。
+
+- SSLD 知识蒸馏： 14 个分类预训练模型，精度普遍提升 3% 以上；其中 ResNet50_vd 模型在 ImageNet-1k 数据集上的 Top-1 精度达到了 84.0% ， Res2Net200_vd 预训练模型 Top-1 精度高达 85.1% 。
+
+- 数据增广：支持 AutoAugment 、 Cutout 、 Cutmix 等 8 种数据增广算法详细介绍、代码复现和在统一实验环境下的效果评估。
+
+
+<div align="center">
+<img src="../../images/recognition.gif"  width = "400" />
+</div>
+
+更多关于图像识别快速体验、算法详解、模型训练评估与预测部署方法，请参考[首页README文档教程](../../../README_ch.md)。

docs/zh_CN_tmp/introduction/more_demo.md

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+## 识别效果展示
+- 商品识别
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/channelhandle_5.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/cliniqueblush_1.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/daoxiangcunjinzhubing_10.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/gannidress_10.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/gbyingerche_15.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/lafiolewine_03.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/taochunqiu_8.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_product/weiduomeinaiyougege_10.jpg"  width = "400" />
+</div>
+
+- 动漫人物识别
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_cartoon/labixiaoxin-005.jpeg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_cartoon/liuchuanfeng-010.jpeg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_cartoon/zhangchulan-007.jpeg"  width = "400" />
+</div>
+
+- logo识别
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_logo/cctv_4.jpg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_logo/mangguo_8.jpeg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_logo/zhongshiyou-007.jpg"  width = "400" />
+</div>
+
+- 车辆识别
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_vehicle/audia5-115.jpeg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_vehicle/bentian-yage-101.jpeg"  width = "400" />
+</div>
+<div align="center">
+<img src="../../images/recognition/more_demo_images/output_vehicle/bmw-m340-107.jpeg"  width = "400" />
+</div>
+
+[更多效果图](../../images/recognition/more_demo_images)