Additional example (#3395)

* Additional example

Using the sensor as a trigger. The syntax for this took me ages to work out, be great to save someone else the hours.

* Marking template lines with raw tags

Following @fabaff advice to avoid render of the template, using {% raw %}{{your_template}}{% endraw %}.

* fixing endraw tag

* Fixing? spacing issue

source/_components/sensor.speedtest.markdown

@@ -90,6 +90,25 @@ sensor:
       - upload
 ```
 
+### {% linkable_title Using as a trigger in an automation %}
+
+```yaml
+# Example configuration.yaml entry
+automation:
+ - alias: 'Internet Speed Glow Connect Great' 
+    trigger: 
+      platform: template
+      value_template: '{% raw %}{{ states.sensor.speedtest_download.state|float > 10}}{% endraw %}'
+    action:      
+      service: shell_command.green
+  - alias: 'Internet Speed Glow Connect Poor' 
+    trigger: 
+      platform: template
+      value_template: '{% raw %}{{ states.sensor.speedtest_download.state| float < 10 }}{% endraw %}' 
+    action:      
+      service: shell_command.red
+```
+
 ## {% linkable_title Notes %}
 
 - When running on Raspberry Pi, just note that the maximum speed is limited by its 100 Mbit/s LAN adapter.