[ADF-4152] Restructured Content Services docs (#4429)

* [ADF-4152] Moved content services docs to subfolders

* [ADF-4152] Manual URL fixes for cont services docs

* [ADF-4152] Moved content services docs to subfolders

* [ADF-4152] Manual URL fixes for cont services docs

* [ADF-4152] Updated doc index pages for content services

docs/content-services/components/rating.component.md

@@ -0,0 +1,39 @@
+---
+Title: Rating component
+Added: v2.0.0
+Status: Active
+Last reviewed: 2019-01-14
+---
+
+# [Rating component](../../../lib/content-services/social/rating.component.ts "Defined in rating.component.ts")
+
+Allows a user to add ratings to an item.
+
+![Rating component screenshot](../../docassets/images/social2.png)
+
+## Basic Usage
+
+```html
+<adf-rating  
+    [nodeId]="'74cd8a96-8a21-47e5-9b3b-a1b3e296787d'">
+</adf-rating>
+```
+
+## Class members
+
+### Properties
+
+| Name | Type | Default value | Description |
+| ---- | ---- | ------------- | ----------- |
+| nodeId | `string` |  | Identifier of the node to apply the rating to. |
+
+### Events
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| changeVote | [`EventEmitter`](https://angular.io/api/core/EventEmitter)`<Object>` | Emitted when the "vote" gets changed. |
+
+## See also
+
+-   [Like component](like.component.md)
+-   [Rating service](../services/rating.service.md)