Add JuanMTech video to Owntracks docs

source/_components/owntracks.markdown

@@ -20,9 +20,13 @@ OwnTracks is a free and open source application for iOS and Android that allow y
 
 By default the integration will listen for incoming messages from OwnTracks via HTTP. It will also listen for MQTT messages if Home Assistant is configured to use MQTT.
 
+<div class='videoWrapper'>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/UieAQ8sC6GY" frameborder="0" allowfullscreen></iframe>
+</div>
+
 ### {% linkable_title Configuring the component %}
 
-1. Open the Home Assistant frontend 
+1. Open the Home Assistant frontend
 1. Open Settings -> integrations
 1. If you see an Owntracks component under 'Configured', delete it.
    - Click on it.
@@ -31,7 +35,7 @@ By default the integration will listen for incoming messages from OwnTracks via
 1. The login credentials and configuration for owntracks will be presented to you.
    in a popup window. You will need these in the configuration for the app as mentioned below.
 1. Save these credentials somewhere, as there is no way to get it back at a later point in time if it is lost, besides         repeating step 1-5
-  
+
 ### {% linkable_title Configuring the app - Android %}
 
 [Install the OwnTracks application for Android.](https://play.google.com/store/apps/details?id=org.owntracks.android)