Misc

Fix the project license in the metainfo file
Update README

Author: wh201906

README.md

@@ -217,20 +217,9 @@ make -j4 && make clean
 ./SerialTest 
 ```
 
-### 5. Packing instructions
+## Install from the Linux software repository
 
-#### `pack/aur` instructions for the use of packaged files
-
-```bash
-aur
-├── io.github.wh201906.serialtest.desktop         # serialtest install desktop startup files, eg: /usr/share/applications/io.github.wh201906.serialtest.desktop
-└── io.github.wh201906.serialtest.metainfo.xml    # serialtest install Desktop description File, eg: /usr/share/metainfo/io.github.wh201906.serialtest.metainfo.xml
-
-```
-
-### 6. Installed through the Linux software repository
-
-#### Arch Linux
+### Arch Linux
 ```bash
 # Install the release
 yay -S serialtest

doc/README/README_zh_CN.md

@@ -217,20 +217,9 @@ make -j4 && make clean
 ./SerialTest 
 ```
 
-### 5. 打包说明
+## 通过 Linux 软件仓库安装
 
-#### `pack/aur` 打包文件使用说明
-
-```bash
-aur
-├── io.github.wh201906.serialtest.desktop         # serialtest 安装桌面启动文件, 例如: /usr/share/applications/io.github.wh201906.serialtest.desktop
-└── io.github.wh201906.serialtest.metainfo.xml    # serialtest 安装桌面描述文件, 例如: /usr/share/metainfo/io.github.wh201906.serialtest.metainfo.xml
-
-```
-
-### 6. 通过 Linux 软件仓库安装
-
-#### Arch Linux
+### Arch Linux
 ```bash
 # 安装发行版
 yay -S serialtest

pack/aur/README.md

@@ -0,0 +1,16 @@
+# Packing instructions | 打包说明
+
+`pack/aur` instructions for the use of packaged files | 打包文件使用说明  
+
+```bash
+./
+├── io.github.wh201906.serialtest.desktop         
+└── io.github.wh201906.serialtest.metainfo.xml    
+
+```
+
+```io.github.wh201906.serialtest.desktop``` is the desktop entry file | 桌面应用程序配置项  
+eg: ```/usr/share/applications/io.github.wh201906.serialtest.desktop```  
+
+```io.github.wh201906.serialtest.metainfo.xml``` is the package metainfo file | 软件包描述文件  
+eg: ```/usr/share/metainfo/io.github.wh201906.serialtest.metainfo.xml```  

pack/aur/io.github.wh201906.serialtest.metainfo.xml

@@ -6,7 +6,7 @@
   <summary>SerialTest</summary>
 
   <metadata_license>MIT</metadata_license>
-  <project_license>GPL-2.0-or-later</project_license>
+  <project_license>LGPL-3.0-only</project_license>
 
   <description>
     <p>