update readme to 1.5.1 (#18670)

README.md

@@ -18,7 +18,7 @@ learning to many products at Baidu.
 Our vision is to enable deep learning for everyone via PaddlePaddle.
 Please refer to our [release announcement](https://github.com/PaddlePaddle/Paddle/releases) to track the latest feature of PaddlePaddle.
 
-### Latest PaddlePaddle Release: [Fluid 1.5.0](https://github.com/PaddlePaddle/Paddle/tree/release/1.5)
+### Latest PaddlePaddle Release: [Fluid 1.5.1](https://github.com/PaddlePaddle/Paddle/tree/release/1.5)
 ### Install Latest Stable Release:
 ```
 # Linux CPU
@@ -26,9 +26,9 @@ pip install paddlepaddle
 # Linux GPU cuda9cudnn7
 pip install paddlepaddle-gpu
 # Linux GPU cuda10cudnn7
-pip install paddlepaddle-gpu==1.5.0.post107
+pip install paddlepaddle-gpu==1.5.1.post107
 # Linux GPU cuda8cudnn7
-pip install paddlepaddle-gpu==1.5.0.post87
+pip install paddlepaddle-gpu==1.5.1.post87
 
 # For installation on other platform, refer to http://paddlepaddle.org/
 ```

README_cn.md

@@ -16,7 +16,7 @@ PaddlePaddle (PArallel Distributed Deep LEarning) 是一个简单易用、高效
 
 跟进PaddlePaddle最新特性请参考我们的[版本说明](https://github.com/PaddlePaddle/Paddle/releases)
 
-### PaddlePaddle最新版本: [Fluid 1.5.0](https://github.com/PaddlePaddle/Paddle/tree/release/1.5)
+### PaddlePaddle最新版本: [Fluid 1.5.1](https://github.com/PaddlePaddle/Paddle/tree/release/1.5)
 ### 安装最新稳定版本:
 ```
 # Linux CPU
@@ -24,9 +24,9 @@ pip install paddlepaddle
 # Linux GPU cuda9cudnn7
 pip install paddlepaddle-gpu
 # Linux GPU cuda10cudnn7
-pip install paddlepaddle-gpu==1.5.0.post107
+pip install paddlepaddle-gpu==1.5.1.post107
 # Linux GPU cuda8cudnn7
-pip install paddlepaddle-gpu==1.5.0.post87
+pip install paddlepaddle-gpu==1.5.1.post87
 
 # 其他平台上的安装指引请参考 http://paddlepaddle.org/
 ```