Updated: readme for demo

components/file-upload/readme.md

@@ -1,4 +1,48 @@
 ### Usage
 ```typescript
-import {fileUpload} from 'ng2-file-upload';
+import {FileSelect, FileDrop, FileUploader} from 'ng2-file-upload';
 ```
+
+### Annotations
+```typescript
+// class FileSelect
+@Directive({
+  selector: '[ng2-file-select]',
+  properties: ['uploader'],
+  host: {
+    '(change)': 'onChange()'
+  }
+})
+```
+
+```typescript
+// class FileDrop
+@Directive({
+  selector: '[ng2-file-drop]',
+  properties: ['uploader'],
+  events: ['fileOver'],
+  host: {
+    '(drop)': 'onDrop($event)',
+    '(dragover)': 'onDragOver($event)',
+    '(dragleave)': 'onDragLeave($event)'
+  }
+})
+```
+
+## FileSelect API
+
+### Properties
+
+  - `uploader` - (`FileUploader`) - uploader object. See using in [demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.ts)
+  
+## FileDrop API
+
+### Properties
+
+  - `uploader` - (`FileUploader`) - uploader object. See using in [demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.ts)
+
+### Events
+
+  - `file-over` - 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)