feat(application.md): translate to English

- Validate that markdown file comply with the markdownlint-cli2 rules

Author: Zenvie

application.md

@@ -1,16 +1,21 @@
-我们欢迎有能力的组织和个人镜像我们的软件仓库。以下是推荐的申请流程：
+# How to Apply Mirror of Arch Linux CN Repository
 
-1. 在本仓库开一个 pr，说明相关情况，并在 mirrors.yaml 文件中添加预计建立镜像的相关信息。同时在 pr 中提供一个邮件地址。
-2. 等待含有 rsync 用户名和密码的邮件。
-3. 等镜像初始化完成之后，pr 将被合并。
+We welcome capable organizations and individuals to apply mirror of our software repository. This can improve the performance and reliability of our software distribution, and also provide a better service for the users in your region. To apply, please follow these steps:
 
-推荐的同步命令：
+1. Clone this repository and edit [mirrors.yaml](mirrors.yaml) with your mirror information. By following the directive `python manager.py all`, the protocols and coordinates fields will be automatically populated, and README.md, archlinuxcn-mirrorlist, and mirrors.geojson files will be generated.
 
-```sh
-RSYNC_PASSWORD=<你的rsync密码> rsync -rtlivH --delete-after --delay-updates --safe-links --max-delete=1000 --contimeout=60 <你的rsync用户名>@sync.repo.archlinuxcn.org::repo .
-```
+2. Create a pull request with your changes and describe your situation. Please provide an email address for contact.
 
-关于同步频率：我们的打包机器人 lilac 每天 (Asia/Shanghai, UTC+8) 4、12、20 点多会开始打包，因此建议同步频率6、7小时一次，尽量避开 lilac 打包的时间段。
+3. Wait for our email with the rsync username and password. Use the following command to synchronize your mirror with our main server:
 
-你也可以发送邮件到 repo 位于 archlinuxcn.org 来申请。
+   ```bash
+   RSYNC_PASSWORD=<your rsync password> rsync --recursive --times --links --hard-links --safe-links --max-delete=1000 --delete-after --delay-updates --itemize-changes --verbose --contimeout=60 <your rsync username>@sync.repo.archlinuxcn.org::repo .
+   ```
 
+4. Once your mirror has been initialized, we will merge your pull request and include your mirror in our mirrorlist.
+
+5. We recommend synchronizing every 6 or 7 hours, and avoiding the time when our automatic packaging system, [lilac](https://github.com/archlinuxcn/lilac), is working at 4, 12 and 20 (Asia/Shanghai, UTC+8) every day. This can prevent potential conflicts and errors during the synchronization process.
+
+Alternatively, you can email <[email protected]> to apply for mirror. We will reply as soon as possible.
+
+Thank you for your support and contribution!