Update README.md

README.md

 ## 环境依赖: python, 三方包
 
 - python环境安装
-https://www.runoob.com/python/python-install.html
+> https://www.runoob.com/python/python-install.html
 
 - 三方包
+```
 pip3 install requests filecache
-(pip install requests filecache)
+(或者 pip install requests filecache)
+```
+
 
 
 ## 配置脚本