docs: add sends description

README.md

@@ -18,6 +18,7 @@ This tool supports backing up the following files or directories.
 - `db.sqlite3`
 - `config.json`
 - `attachments` (directory)
+- `sends` (directory)
 
 
 
@@ -131,6 +132,10 @@ If you didn't set the `ZIP_ENABLE` environment variable to `TRUE` when you backe
 
 If you didn't set the `ZIP_ENABLE` environment variable to `TRUE` when you backed up the file, you need to use this option to specify the `attachments.tar` file.
 
+##### --sends-file
+
+If you didn't set the `ZIP_ENABLE` environment variable to `TRUE` when you backed up the file, you need to use this option to specify the `sends.tar` file.
+
 ##### --zip-file
 
 If you set the `ZIP_ENABLE` environment variable to `TRUE` when you backed up the file, you need to use this option to specify the `backup.zip` file.
@@ -278,6 +283,12 @@ Set the attachment folder path, you don't need to modify it.
 
 Default: `${DATA_DIR}/attachments`
 
+#### DATA_SENDS
+
+Set the sends folder path, you don't need to modify it.
+
+Default: `${DATA_DIR}/sends`
+
 
 
 ## Use `.env` file

README_zh.md

@@ -18,6 +18,7 @@
 - `db.sqlite3`
 - `config.json`
 - `attachments` (directory)
+- `sends` (directory)
 
 
 
@@ -133,6 +134,10 @@ docker run --rm -it \
 
 如果你在备份文件时没有将 `ZIP_ENABLE` 环境变量设置为 `TRUE`，那你需要用这个选项来指定 `attachments.tar` 文件。
 
+##### --sends-file
+
+如果你在备份文件时没有将 `ZIP_ENABLE` 环境变量设置为 `TRUE`，那你需要用这个选项来指定 `sends.tar` 文件。
+
 ##### --zip-file
 
 如果你在备份文件时将 `ZIP_ENABLE` 环境变量设置为 `TRUE`，则需要使用这个选项来指定 `backup.zip` 文件。
@@ -279,6 +284,12 @@ Rclone 远程名称，你可以自己修改命名。
 
 默认值：`${DATA_DIR}/attachments`
 
+#### DATA_SENDS
+
+指定 sends 文件夹路径，你不需要修改它。
+
+默认值：`${DATA_DIR}/sends`
+
 
 
 ## Use `.env` file