python2 not supported

doc/doc_ch/style_text_rec.md

@@ -9,7 +9,7 @@ Style-Text是对百度自研文本编辑算法《Editing Text in the Wild》中
 
 #### 环境配置
 
-1. 参考[快速安装](./installation.md)，安装PaddlePaddle并准备环境。
+1. 参考[快速安装](./installation.md)，安装PaddlePaddle并准备环境。强烈建议您使用python3环境。
 2. 进入`style_text_rec`目录，下载模型，并解压：
 
 ```bash

doc/doc_en/style_text_rec_en.md

@@ -7,7 +7,7 @@ The following figure shows some example results. In addition, the actual `namepl
 
 #### Preparation
 
-1. Please refer the [QUICK INSTALLATION](./installation_en.md) to install PaddlePaddle.
+1. Please refer the [QUICK INSTALLATION](./installation_en.md) to install PaddlePaddle. Python3 environment is recommended.
 2. Download the pretrained models and unzip:
 
 ```bash