Update README

README.md

@@ -1 +1,37 @@
-# gateway-lightify
+# IoT Gateway Application for OSRAM Lightify
+
+Connect your OSRAM Lightify Hub to Watson IoT.
+
+- [IBM Watson IoT](https://internetofthings.ibmcloud.com)
+- [OSRAM Lightify](https://www.osram.com/lightify)
+
+## Lights
+
+### Automatic Device Registration
+
+Any new light connected to your Lightify hub will be auto-registered as a new device in Watson IoT
+
+### Events
+
+State updates are published to Watson IoT every 60 seconds (althought this can easily be changed).  For every light connected to your hub the 
+gateway will relay a state event containing all the state data available from Lightify:
+
+
+```json
+{
+  "online": true,
+  "on": true,
+  "lum": 100,
+  "temp": 2702,
+  "colour": {
+    "red": 1,
+    "green": 0,
+    "blue": 0,
+  },
+  "alpha": 255
+}
+```
+
+### Commands
+
+This version of the gateway only supports publishing state events.  Command control will be added in the future.