Add icon_template description to configuration (home-assistant#4521)

Kallb123 · frenck · commit 76d3d893bef9 · 2018-01-26T21:57:54.000+01:00
diff --git a/source/_components/switch.template.markdown b/source/_components/switch.template.markdown
@@ -67,6 +67,10 @@ switch:
         description: Defines an action to run when the switch is turned off.
         required: true
         type: action
+      icon_template:
+        description: Defines a template for the icon of the switch.
+        required: false
+        type: template
 {% endconfiguration %}
 
 ## {% linkable_title Considerations %}
