Add docs for Emby media_player component. (#1237)

* Add docs for Emby media_player component.

* Update for http or https

* Hope for release in 0,32

source/_components/media_player.emby.markdown

@@ -0,0 +1,33 @@
+---
+layout: page
+title: "Emby"
+description: "Instructions how to integrate Emby into Home Assistant."
+date: 2016-10-13 22:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: emby.png
+ha_category: Media Player
+ha_release: "0.32"
+ha_iot_class: "Local Polling"
+---
+
+
+The `emby` platform allows you to control a [Emby](http://emby.media/) multimedia system from Home Assistant.
+
+To add Emby to your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+media_player:
+  - platform: emby
+    host: http://192.168.11.5
+    api_key: "emby_api_key"
+```
+
+Configuration variables:
+
+- **host** (*Required*): The host name or address of the device that is running Emby, either http or https.
+- **api_key** (*Requred*): The api-key you would like home-assistant to use to authenticate.
+- **port** (*Optional*): The port number. Defaults to 8096.