[ADF-2463] Moved doc files into subfolders (#3080)

docs/content-services/upload-drag-area.component.md

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+---
+Added: v2.0.0
+Status: Active
+---
+# Upload Drag Area Component
+
+Adds a drag and drop area to upload files to Alfresco.
+
+## Basic Usage
+
+```html
+<adf-upload-drag-area (success)="onSuccess($event)">
+    <div style="width: 200px; height: 100px; border: 1px solid #888888">
+        DRAG HERE
+    </div>
+</adf-upload-drag-area>
+<file-uploading-dialog></file-uploading-dialog>
+```
+
+```ts
+export class AppComponent {
+
+    public onSuccess(event: Object): void {
+        console.log('File uploaded');
+    }
+
+}
+```
+
+### Properties
+
+| Name | Type | Default | Description |
+| --- | --- | --- | --- |
+| disabled | boolean | false | Toggle component disabled state |
+| parentId | string | '-root-' | The ID of the folder in which the files will be uploaded. |
+| versioning | boolean | false |  Versioning false is the default uploader behaviour and it renames the file using an integer suffix if there is a name clash. Versioning true to indicate that a major version should be created  | 
+
+### Events
+
+| Name | Description |
+| --- | --- |
+| success | Raised when the file is uploaded |