update readme.md

README.md

@@ -2,7 +2,7 @@
 
 [![flutter](https://img.shields.io/badge/flutter-3.22.1-blue)](https://flutter.dev/) 
 [![License](https://img.shields.io/github/license/wgh136/pixes)](https://github.com/wgh136/pixes/blob/master/LICENSE)
-[![Download](https://img.shields.io/github/v/release/wgh136/pixes)](https://github.com/wgh136/PicaComic/pixes)
+[![Download](https://img.shields.io/github/v/release/wgh136/pixes)](https://github.com/wgh136/pixes)
 [![stars](https://img.shields.io/github/stars/wgh136/pixes)](https://github.com/wgh136/pixes/stargazers)
 [![Telegram Discussion](https://img.shields.io/static/v1?label=Discussion&message=Telegram&color=blue&logo=telegram)](https://t.me/pica_group)
 
@@ -10,6 +10,40 @@
 
 主要功能均已实现
 
+## 下载
+
+在 [Release](https://github.com/wgh136/pixes/releases) 页面下载
+
+## 从源代码构建
+
+### 准备工作
+
+安装Stable版的Flutter
+
+### 构建Android
+
+将你的证书文件(`key.jks`, `key.properties`)放在`android`目录下
+
+执行`flutter build apk`构建apk
+
+### 构建iOS
+
+执行`flutter build ios`构建iOS程序
+
+### 构建Windows
+
+执行`python windows/build_windows.py`构建Windows程序
+
+### 构建macOS
+
+执行`flutter build macos`构建macOS程序
+
+### 构建Linux
+
+执行`python3 debian/build.py`构建deb包
+
+如果你使用其他发行版, 请注意`.desktop`文件中需要注册 URI Scheme `pixiv`
+
 ## 屏幕截图
 
 <img src="screenshots/1.png" style="width: 400px">