Update version

docs/docs_ch/installation.md

@@ -18,7 +18,7 @@ pip install paddlepaddle-gpu==2.0.0rc
 在安装PaddleHub之前，请先安装PaddlePaddle深度学习框架，更多安装说明请查阅[飞桨快速安装](https://www.paddlepaddle.org.cn/install/quick/zh/2.0rc-windows-pip)
 
 ```shell
-pip install paddlehub==2.0.0b2
+pip install paddlehub==2.0.0rc0
 ```
 
 除上述依赖外，PaddleHub的预训练模型和预置数据集需要连接服务端进行下载，请确保机器可以正常访问网络。若本地已存在相关的数据集和预训练模型，则可以离线运行PaddleHub。

docs/docs_en/installation_en.md

@@ -18,7 +18,7 @@ pip install paddlepaddle-gpu==2.0.0rc
 Before installing the PaddleHub, install the PaddlePaddle deep learning framework first. For more installation instructions, refer to [PaddleQuickInstall](https://www.paddlepaddle.org.cn/install/quick/zh/2.0rc-windows-pip)
 
 ```shell
-pip install paddlehub==2.0.0b2
+pip install paddlehub==2.0.0rc0
 ```
 
 In addition to the above dependences, PaddleHub's pre-training models and pre-set datasets need to be downloaded through connecting to the server. Make sure that the computer can access the network. You can run PaddleHub offline if the relevant datasets and pre-set models are already available locally.

paddlehub/__init__.py

@@ -17,7 +17,7 @@ import sys
 
 from easydict import EasyDict
 
-__version__ = '2.0.0-beta2'
+__version__ = '2.0.0-rc0'
 
 from paddlehub import env
 from paddlehub.config import config