docs: update README

README.md

@@ -479,6 +479,15 @@ We recommend re-downloading the `docker-compose.yml` file, replacing your enviro
 
 
 
+## Advance
+
+- [Run as non-root user](docs/run-as-non-root-user.md)
+- [Multiple remote destinations](docs/multiple-remote-destinations.md)
+
+<br>
+
+
+
 ## Changelog
 
 Check out [CHANGELOG](CHANGELOG.md) file.

README_zh.md

@@ -476,6 +476,15 @@ docker run --rm -it -e MAIL_SMTP_VARIABLES='<your smtp variables>' -e MAIL_TO='<
 
 
 
+## 高级
+
+- [以非 root 用户运行](docs/run-as-non-root-user.md)
+- [备份到多个远程目标](docs/multiple-remote-destinations.md)
+
+<br>
+
+
+
 ## 更新日志
 
 请查看 [CHANGELOG](CHANGELOG.md) 文件。

docs/multiple-remote-destinations.md

@@ -0,0 +1,89 @@
+# Multiple remote destinations
+
+Some users want to upload to multiple remote destinations when backing up.
+
+You can do this by setting the following environment variables.
+
+<br>
+
+
+
+## Usage
+
+Set additional remote destinations via environment variables `RCLONE_REMOTE_NAME_N` and `RCLONE_REMOTE_DIR_N`.
+
+Note:
+
+- `N` is the serial number, which is a number
+- `N` starts from 1 and is consecutive, e.g. 1 2 3 4 5 ...
+- `RCLONE_REMOTE_NAME_N` and `RCLONE_REMOTE_DIR_N` cannot be empty
+
+The script will break parsing of environment variables for remote destinations where the serial number is not consecutive or the value is empty.
+
+<br>
+
+
+
+#### Example
+
+```yml
+...
+environment:
+  # they have default values
+  # RCLONE_REMOTE_NAME: BitwardenBackup
+  # RCLONE_REMOTE_DIR: /BitwardenBackup/
+  RCLONE_REMOTE_NAME_1: extraRemoteName1
+  RCLONE_REMOTE_DIR_1: extraRemoteDir1
+...
+```
+
+Both remote destinations are available, they are `BitwardenBackup:/BitwardenBackup/` and `extraRemoteName1:extraRemoteDir1`.
+
+<br>
+
+```yml
+...
+environment:
+  RCLONE_REMOTE_NAME: remoteName
+  RCLONE_REMOTE_DIR: remoteDir
+  RCLONE_REMOTE_NAME_1: extraRemoteName1
+  RCLONE_REMOTE_DIR_1: extraRemoteDir1
+  RCLONE_REMOTE_NAME_2: extraRemoteName2
+  RCLONE_REMOTE_DIR_2: extraRemoteDir2
+  RCLONE_REMOTE_NAME_3: extraRemoteName3
+  RCLONE_REMOTE_DIR_3: extraRemoteDir3
+  RCLONE_REMOTE_NAME_4: extraRemoteName4
+  RCLONE_REMOTE_DIR_4: extraRemoteDir4
+...
+```
+
+All 5 remote destinations are available.
+
+<br>
+
+```yml
+...
+environment:
+  RCLONE_REMOTE_NAME: remoteName
+  RCLONE_REMOTE_DIR: remoteDir
+  RCLONE_REMOTE_NAME_1: extraRemoteName1
+  RCLONE_REMOTE_DIR_1: extraRemoteDir1
+  RCLONE_REMOTE_NAME_2: extraRemoteName2
+  # RCLONE_REMOTE_DIR_2: extraRemoteDir2
+  RCLONE_REMOTE_NAME_3: extraRemoteName3
+  RCLONE_REMOTE_DIR_3: extraRemoteDir3
+  RCLONE_REMOTE_NAME_4: extraRemoteName4
+  RCLONE_REMOTE_DIR_4: extraRemoteDir4
+...
+```
+
+`RCLONE_REMOTE_DIR_2` is not defined, so only the remote destination before it is available. They are `remoteName:remoteDir` and `extraRemoteName1:extraRemoteDir1`.
+
+<br>
+
+
+
+## Notification
+
+- success: **all** remote destinations were uploaded successfully
+- failure: **any** of the remote destinations failed to upload