Add vendor state into example

Change-Id: Ib373e8313bfacc4ade2ef2e924f433252fc5096e
Reviewed-on: https://weave-review.googlesource.com/1212
Reviewed-by: Vitaly Buka <vitalybuka@google.com>
diff --git a/libweave/examples/ubuntu/README b/libweave/examples/ubuntu/README
index 063d8f4..af67036 100644
--- a/libweave/examples/ubuntu/README
+++ b/libweave/examples/ubuntu/README
@@ -84,7 +84,8 @@
         Enter request body:
         {
           "deviceId": "0f8a5ff5-1ef0-ec39-f9d8-66d1caeb9e3d",
-          "name": "_greeter._greet"
+          "name": "_greeter._greet",
+          "parameters": { "_name": "cloud user" }
         }
    "Send the request", you command will be "queued" as its "state"