update readme

Author: ww-rm

README.en.md

@@ -10,24 +10,10 @@ Implemented in C language, encapsulated based on the native CPython interface, w
 
 ## Installation
 
-### Windows
-
-For `python3.8` and higher versions, you can directly install using `pip`.
-
 ```bash
 pip install gmalglib
 ```
 
-Alternatively, refer to the source code installation for other platforms.
-
-### Other Platforms
-
-Visit the PyPI project file list [Download files](https://pypi.org/project/gmalglib/#files) page to download the source distribution package `gmalglib-x.y.z.tar.gz`, then proceed with the source code installation.
-
-```bash
-pip install gmalglib-x.y.z.tar.gz
-```
-
 ## Core Algorithms Implemented
 
 - SM2 Public Key Cryptograhpic Algorithm Based on Elliptic Curves

README.md

@@ -10,24 +10,10 @@
 
 ## 安装
 
-### Windows
-
-对于 `python3.8` 及以上, 可以直接使用 `pip` 进行安装.
-
 ```bash
 pip install gmalglib
 ```
 
-或者参考其他平台使用源码安装.
-
-### 其他平台
-
-前往 PyPI 项目文件列表 [Download files](https://pypi.org/project/gmalglib/#files) 页面下载源码发布包 `gmalglib-x.y.z.tar.gz`, 之后使用源码安装.
-
-```bash
-pip install gmalglib-x.y.z.tar.gz
-```
-
 ## 已实现的核心算法
 
 - SM3 密码杂凑算法