Update z-wave.markdown (home-assistant#1452)

turbokongen · fabaff · commit 8977fc036ce3 · 2016-11-19T11:48:42.000+01:00
* Update z-wave.markdown

* Update z-wave.markdown
diff --git a/source/getting-started/z-wave.markdown b/source/getting-started/z-wave.markdown
@@ -79,6 +79,8 @@ Configuration variables:
 - **customize** (*Optional*): This attribute contains node-specific override values:
   - **polling_intensity** (*Optional*): Enables polling of a value and sets the frequency of polling (0=none, 1=every time through the list, 2=every other time, etc). If not specified then your device will not be polled.
   - **ignored** (*Optional*): Ignore this entitiy completely. It won't be shown in the Web Interface and no events are generated for it.
+  - **refresh_value** (*Optional*): Enable refreshing of the node value. Only light component uses this. Defaults to 2 second delay.
+  - **delay** (*Optional*): Specify the delay to wait for refresh of node value if you want other than 2 seconds.
 
 To find the path of your Z-Wave USB stick or module, run:
 
