Get entities documentation requires updating

[paranoidi]

Documentation URL

https://zachowj.github.io/node-red-contrib-home-assistant-websocket/node/get-entities.html#payload

The problem

In the JSON example the "stateObject" value is no longer valid, it seems to have been switched to "state_object".

[paranoidi]

Another finding. I can not get this to work. Nothing is returned even though I have only one device labeled with it.

    {
      "condition": "label_registry",
      "property": "name",
      "logic": "is_not",
      "value": "not replaceable",
      "valueType": "str"
    }

It works if I change the logic to "is" and returns correctly entities from the labeled entity. Maybe related #1737 ?