Updating example

demo/src/doc.md

@@ -25,6 +25,9 @@ import { FileSelectDirective, FileDropDirective, FileUploader } from 'ng2-file-u
   1. `url` - URL of File Uploader's route
   2. `authToken` - auth token that will be applied as 'Authorization' header during file send.
   3. `disableMultipart` - If 'true', disable using a multipart form for file upload and instead stream the file. Some APIs (e.g. Amazon S3) may expect the file to be streamed rather than sent via a form. Defaults to false.
+  4. `itemAlias` - item alias (form name redefenition)
+  5. `formatDataFunction` - Function to modify the request body. 'DisableMultipart' must be 'true' for this function to be called.
+  6. `formatDataFunctionIsAsync` - Informs if the function sent in 'formatDataFunction' is asynchronous. Defaults to false.
 
 ## FileDrop API
 
@@ -37,3 +40,4 @@ import { FileSelectDirective, FileDropDirective, FileUploader } from 'ng2-file-u
   - `fileOver` - it fires during 'over' and 'out' events for Drop Area; returns `boolean`: `true` if file is over Drop Area, `false` in case of out.
   See using in [ts demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.ts) and
   [html demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.html)
+  - `onFileDrop` - it fires after a file has been dropped on a Drop Area; you can pass in `$event` to get the list of files that were dropped. i.e. `(onFileDrop)="dropped($event)"`