Update hue.markdown

sebk-666 · web-flow · commit c16b6e2ef5a7 · 2018-04-02T18:29:59.000+02:00
- Removed the "(Optional)" tag from the host-Parameter, because it is mandatory now
- Added another configuration example to clarify how to specify multiple configuration variables; the examples in the "multiple bridges..." section do show this already, but this section might be skipped by the majority of users owning only a single bridge.
diff --git a/source/_components/hue.markdown b/source/_components/hue.markdown
@@ -33,11 +33,20 @@ hue:
 
 Configuration variables:
 
-- **host** (*Optional*): IP address of the device, eg. 192.168.1.10. Required if not using the `discovery` component to discover Hue bridges.
+- **host**: IP address of the device, eg. 192.168.1.10. Required if not using the `discovery` component to discover Hue bridges.
 - **allow_unreachable** (*Optional*): (true/false)  This will allow unreachable bulbs to report their state correctly.
 - **filename** (*Optional*): Make this unique if specifying multiple Hue hubs.
 - **allow_hue_groups** (*Optional*): (true/false) Enable this to stop Home Assistant from importing the groups defined on the Hue bridge.
 
+```yaml
+# Example configuration.yaml entry specifying optional parameters
+hue:
+  bridges:
+    - host: DEVICE_IP_ADDRESS
+      allow_unreachable: true
+      allow_hue_groups: true
+```
+
 ### {% linkable_title Migrating from older configuration %}
 
 In previous versions of the Hue component the configuration looked different:
