message: [Cogsvcs] LUIS - add text to simple entity description
diff: },
  "/apps/{appId}/versions/{versionId}/entities": {
  "post": {
  - "description": "Adds an entity extractor to the application.",
  + "description": "Adds a simple entity extractor to the application.",
  "operationId": "Model_AddEntity",
  "parameters": [
  {
  "schema": {
  "$ref": "#/definitions/ModelCreateObject"
  },
  - "description": "A model object containing the name for the new entity extractor."
  + "description": "A model object containing the name for the new simple entity extractor."
  }
  ],
  "consumes": [
  