新增群晖Agent安装社区文章，优化通知文档格式

docs/en_US/guide/agent.md

@@ -130,14 +130,18 @@ EOF
   ```
 
 ### Installing Agent on Windows  
+
 - Please refer to the community article:   
 [哪吒探针 - Windows 客户端安装](https://nyko.me/2020/12/13/nezha-windows-client.html) (Chinese)  
 <br/>  
 
 ### Installing Agent on Synology DSM
+
 - Please refer to the community article:   
+[群晖 DSM 7.x 安装 哪吒监控 Agent](https://blog.mitsea.com/3929551d08bd4bb0a8baa453e2d92b0c/) (Chinese)  
 [哪吒探针——群晖客户端（被控端）安装教程](https://wl.gta5pdx.cn/archives/546/) (Chinese)  
 
+
 - Using Systemd *Only available on DSM7*:
   ```sh
   # Path of the agent binary file.
@@ -175,10 +179,6 @@ EOF
   ```
   ‼️DO IT WHEN YOU HAVE MODIFIED THE ENVS‼️
   
-  ‼️DO IT WHEN YOU HAVE MODIFIED THE ENVS‼️
-  
-  ‼️DO IT WHEN YOU HAVE MODIFIED THE ENVS‼️
-  
   Using `root` to execute command above, that's all.
 
 <br/> 

docs/en_US/guide/notifications.md

@@ -33,7 +33,7 @@ Refer to the example below, it is very flexible.
      - Body: null
      - Notes for this method：The XXXXXX in botXXXXXX is the token provided when you follow the official @Botfather in Telegram and enter /newbot to create a new bot. (In the line after _Use this token to access the HTTP API_). The 'bot' are essential. After creating a bot, you need to talk to the BOT in Telegram (send a random message) before you can send a message by using API. YYYYYY is Telegram user's ID, you can get it by talking to the bot @userinfobot.    
 
-  - **Email notification example - Outlook, contributed by [@Cantoblanco](https://github.com/cantoblanco)**   
+  - **Email notification example - Outlook**   
      - Name: MS Mail Notification
      - URL：https://graph.microsoft.com/v1.0/me/microsoft.graph.sendMail
      - Request method: POST
@@ -41,7 +41,7 @@ Refer to the example below, it is very flexible.
      - Header: `{"Content-type":"application/json",
                   "Authorization":"Bearer {Token}"}`
      - Body:
-  ```
+    ```json
       {
         "message": {
             "subject": "Server Status Notification",
@@ -60,7 +60,7 @@ Refer to the example below, it is very flexible.
       } 
     ```
 
-  - Notes for this method: This method requires calling Microsoft Graph V1.0, you need to go to Microsoft Graph and create your own application, give `Mail.Send` permission and get the Token, or you can go [Microsoft Graph Explorer](https://developer.microsoft.com/en-us/graph/graph-explorer) directly to give permission and get the Token, just replace the Token in the Header with the actual Token.
+    Notes for this method: This method requires calling Microsoft Graph V1.0, you need to go to Microsoft Graph and create your own application, give `Mail.Send` permission and get the Token, or you can go [Microsoft Graph Explorer](https://developer.microsoft.com/en-us/graph/graph-explorer) directly to give permission and get the Token, just replace the Token in the Header with the actual Token.
     
   - **Wechat Work Group bot Example,  contributed by [@ChowRex](https://github.com/ChowRex)**
     

docs/guide/agent.md

@@ -144,6 +144,7 @@ EOF
 ### 在 群晖DSM 中安装 Agent  
 
 - 请参考社区文章：  
+[群晖 DSM 7.x 安装 哪吒监控 Agent](https://blog.mitsea.com/3929551d08bd4bb0a8baa453e2d92b0c/)  
 [哪吒探针——群晖客户端（被控端）安装教程](https://wl.gta5pdx.cn/archives/546/)  
 
 - Systemd 实现 *仅适用于 DSM7*:
@@ -187,10 +188,6 @@ EOF
   ```
   ‼️修改对应信息后‼️
   
-  ‼️修改对应信息后‼️
-  
-  ‼️修改对应信息后‼️
-  
   使用 `root` 账号执行上述命令即可安装完成
 
 <br/>

docs/guide/notifications.md

@@ -58,7 +58,7 @@ URL 里面也可放置占位符，请求时会进行简单的字符串替换。
      - Header: 留空
      - Body: 留空
      
-  - URL 参数获取说明：此方式需提前在 [SendCloud](https://www.sendcloud.net/) 注册账号，创建发件邮箱，然后在[这里](https://www.sendcloud.net/sendSetting/apiuser)获取 APIUSER 和 APIKEY，替换 URL 中的 <替换APIUSER> 和 <替换APIKEY> 为自己的 APIUSER 和 APIKEY，替换 URL 中的 <自定义发件邮箱> 和 <自定义收件邮箱> 为自己的发件邮箱和收件邮箱。
+    URL 参数获取说明：此方式需提前在 [SendCloud](https://www.sendcloud.net/) 注册账号，创建发件邮箱，然后在[这里](https://www.sendcloud.net/sendSetting/apiuser)获取 APIUSER 和 APIKEY，替换 URL 中的 <替换APIUSER> 和 <替换APIKEY> 为自己的 APIUSER 和 APIKEY，替换 URL 中的 <自定义发件邮箱> 和 <自定义收件邮箱> 为自己的发件邮箱和收件邮箱。
 
   - **企业微信 群机器人 示例 贡献者：[@ChowRex](https://github.com/ChowRex)**