update README

Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/10601974

README.md

@@ -1,16 +1,26 @@
 # Introduction
 
-ModelScope library is targeted to support training, evaluation and inference for the state of the art models provided by Mind and further support third-party models provided by users outside alibaba.
+[ModelScope]( https://www.modelscope.cn) is a “Model-as-a-Service” (MaaS) platform that seeks to bringing together most advanced machine learning models from the AI community, and to streamlining the process of leveraging and applying AI models . The core ModelScope library enables developers to perform model inference, training and evaluation, through rich layers of API designs that facilitate a unified experience across state-of-the-art models from different AI domains.
 
-# Design doc
+The Python library offers the layered-APIs necessary for model contributors to integrate models from CV, NLP, Speech, Multi-Modality, as well as Scientific-computation, into the ModelScope ecosystem. Implementations for all these different models are encapsulated within the library in a way that allows easy and unified access. With such integration, model inference, finetuning, and evaluations can be done within only a few lines of codes. In the meantime, flexibilities are provided so that different components in the model applications can be customized as well, where necessary.
 
-Please refer to alidoc [link](https://alidocs.dingtalk.com/i/nodes/OBldywvrKxo89xmAO05yJQk2ngpNbLz4?nav=spaces&navQuery=spaceId%3Dnb9XJNlZxbgrOXyA&iframeQuery=utm_source%3Dportal%26utm_medium%3Dportal_space_file_tree)
+Apart from harboring implementations of various models, ModelScope library also enables the necessary interactions with the backend services of ModelScope, particularly with the Model-Hub and Dataset-Hub. Such interactions facilitate various entity (models and datasets) management to be performed seamlessly under-the-hood, such as entity lookup, version control, and cache management.
 
-# Development doc
+# Installation
 
-Please refer to [develop.md](docs/source/develop.md)
+Please refer to [installation](https://modelscope.cn/docs/%E7%8E%AF%E5%A2%83%E5%AE%89%E8%A3%85).
 
-# ChangeLog
-* 20/05/2022 First release version
+# Get Started
 
-Refer to [change_log.md](docs/source/change_log.md) for more details
+You can refer to [quick_start](https://modelscope.cn/docs/%E5%BF%AB%E9%80%9F%E5%BC%80%E5%A7%8B) for quick start.
+
+We also provide other documentations including:
+* [Introduction to tasks](https://modelscope.cn/docs/%E4%BB%BB%E5%8A%A1%E7%9A%84%E4%BB%8B%E7%BB%8D)
+* [Use pipeline for model inference](https://modelscope.cn/docs/%E6%A8%A1%E5%9E%8B%E7%9A%84%E6%8E%A8%E7%90%86Pipeline)
+* [Finetune example](https://modelscope.cn/docs/%E6%A8%A1%E5%9E%8B%E7%9A%84%E8%AE%AD%E7%BB%83Train)
+* [Preprocessing of data](https://modelscope.cn/docs/%E6%95%B0%E6%8D%AE%E7%9A%84%E9%A2%84%E5%A4%84%E7%90%86)
+* [Evaluation metrics](https://modelscope.cn/docs/%E6%A8%A1%E5%9E%8B%E7%9A%84%E8%AF%84%E4%BC%B0)
+
+# License
+
+This project is licensed under the [Apache License (Version 2.0)](https://github.com/modelscope/modelscope/blob/master/LICENSE).