Update README.md

README.md

@@ -64,8 +64,9 @@ deploy(opts, files, logger, function(err){
 - `files`: [] - array of files objects to be deployed
   - `path` - absolute path of file
   - `cwd` - [deprecated] current working directory path. Now replaced by `base`
-  - `base` - the base directory in which the file is located. The relative path of file to this directory is used as the destination path
+  - `base` - (optional) the base directory in which the file is located. The relative path of file to this directory is used as the destination path  
     *Note*: if both `base` and `cwd` are missing, the file will be uploaded to the root of the CDN `folder`.
+  - `dest` - (optional) if provided, file will be uploaded to this path on CDN. (relative to the `folder`). Useful for cases where you want to upload to a different path or file name.
 - `logger` - logger compatible with console.log(param1, param2...)
 - `cb` - node callback