Update docs and readme (PaddlePaddle#523)

* update readme for live class

* Update README

* update readme

* update readme

Co-authored-by: yingyibiao <[email protected]>

README.md

@@ -44,7 +44,7 @@ PaddleNLP 2.0是飞桨生态的文本领域核心库，具备**易用的文本
 ### pip安装
 
 ```
-pip install --upgrade paddlenlp -i https://pypi.org/simple
+pip install --upgrade paddlenlp
 ```
 
 更多关于PaddlePaddle和PaddleNLP安装的详细教程请查看[Installation](./docs/get_started/installation.rst)。
@@ -53,7 +53,7 @@ pip install --upgrade paddlenlp -i https://pypi.org/simple
 
 ### Transformer API: 强大的预训练模型生态底座
 
-覆盖**15**个网络结构和**67**个预训练模型参数，既包括百度自研的预训练模型如ERNIE系列, PLATO, SKEP等，也涵盖业界主流的中文预训练模型。
+覆盖**15**个网络结构和**67**个预训练模型参数，既包括百度自研的预训练模型如ERNIE系列, PLATO, SKEP等，也涵盖业界主流的中文预训练模型。也欢迎开发者进预训练模贡献！🤗 
 
 ```python
 from paddlenlp.transformers import *
@@ -76,10 +76,10 @@ from paddlenlp.transformers import ErnieTokenizer, ErnieModel
 tokenizer = ErnieTokenizer.from_pretrained('ernie-1.0')
 text = tokenizer('自然语言处理')
 
-# 获取语义表示
+# 语义表示
 model = ErnieModel.from_pretrained('ernie-1.0')
 pooled_output, sequence_output = model(input_ids=paddle.to_tensor([text['input_ids']]))
-# 文本分类/句对匹配
+# 文本分类 & 句对匹配
 model = ErnieForSequenceClassifiation.from_pretrained('ernie-1.0')
 # 序列标注
 model = ErnieForTokenClassifiation.from_pretrained('ernie-1.0')
@@ -115,7 +115,7 @@ wordemb.cosine_sim("艺术", "火车")
 >>> 0.14792643
 ```
 
-内置50+中文词向量，覆盖多种领域语料、如百科、新闻、微博等。更多使用方法请参考[Embedding文档](./examples/word_embedding/README.md)。
+内置50+中文词向量，覆盖多种领域语料、如百科、新闻、微博等。更多使用方法请参考[Embedding文档](./docs/model_zoo/embeddings.md)。
 
 ### 更多API使用文档
 

README_en.md

@@ -39,20 +39,19 @@ English | [简体中文](./README.md)
 * python >= 3.6
 * paddlepaddle >= 2.1
 
-More information about PaddlePaddle installation please refer to [PaddlePaddle's Website](https://www.paddlepaddle.org.cn/install/quick?docurl=/documentation/docs/zh/install/conda/linux-conda.html)
+More information about PaddlePaddle installation please refer to [PaddlePaddle's Website](https://www.paddlepaddle.org.cn/install/quick?docurl=/documentation/docs/zh/install/conda/linux-conda.html).
 
 ### PIP Installation
 
 ```
-pip install --upgrade paddlenlp -i https://pypi.org/simple
+pip install --upgrade paddlenlp
 ```
 
 ## Easy-to-use API
 
-
 ### Transformer API: Awesome Pre-trained Model Ecosystem
 
-We provide **15** network architecture and **67** pretrained models. Not only includes all the SOTA model like ERNIE, PLATO and SKEP released by Baidu, but also integrates most of high quality Chinese pretrained model developed by other organizations. We also welcome developer to contribute your transformer model! 🤗 
+We provide **15** network architectures and **67** pretrained models. Not only includes all the SOTA model like ERNIE, PLATO and SKEP released by Baidu, but also integrates most of the high quality Chinese pretrained model developed by other organizations. We also welcome developer to contribute your Transformer models! 🤗
 
 ```python
 from paddlenlp.transformers import *
@@ -123,11 +122,11 @@ For more `TokenEmbedding` usage, please refer to [Embedding API](./docs/embeddin
 
 Please find more API Reference from our [readthedocs](https://paddlenlp.readthedocs.io/).
 
-## Rich Application Examples
+##  Wide-range NLP Task Support
 
 PaddleNLP provide rich application examples covers mainstream NLP task to help developer accelerate problem solving.
 
-### NLP Basic Technique
+### NLP Basic Task
 
 - [Word Embedding](./examples/word_embedding/)
 - [Lexical Analysis](./examples/lexical_analysis/)
@@ -143,15 +142,15 @@ PaddleNLP provide rich application examples covers mainstream NLP task to help d
 - [Semantic Indexing](./examples/semantic_indexing/)
 - [Information Extraction](./examples/information_extraction/)
 
-### NLP Application in Real System
+### NLP Industrial Applications
 
 - [Sentiment Analysis](./examples/sentiment_analysis/skep/):star2:
 - [General Dialogue System](./examples/dialogue/)
 - [Machine Translation](./examples/machine_translation/)
 - [Simultaneous Translation](././examples/simultaneous_translation/)
 - [Machine Reading Comprehension](./examples/machine_reading_comprehension/)
 
-### Extention Application
+### Extented Application
 
 - [Text Knowledge Linking](./examples/text_to_knowledge/):star2:
 - [Machine Reading Comprehension](./examples/machine_reading_comprehension)
@@ -191,7 +190,7 @@ Join our QQ Technical Group for technical exchange right now! ⬇️
 
 ## ChangeLog
 
-For more information about our release, please refer to [ChangeLog](./docs/changelog.md)
+For more details about our release, please refer to [ChangeLog](./docs/changelog.md)
 
 ## License