Updated Filer Server API (markdown)

Filer-Server-API.md

@@ -202,6 +202,9 @@ Notice that the tag names follow http header key convention, with the first char
 # move(rename) "/path/to/src_file" to "/path/to/dst_file"
 > curl -X POST 'http://localhost:8888/path/to/dst_file?mv.from=/path/to/src_file'
 ```
+| POST Parameter | Description | Default |
+| ---- | -- | -- |
+| mv.from | move from one file or directory to another location | Required field |
 
 ### Create an empty folder
 Folders usually are created automatically when uploading a file. To create an empty file, you can use this: