message: fix: billing/resource-manager/Microsoft.Billing
  prouct -> product
  setion -> section
diff: "description": "Details of the product to be transferred.",
  "properties": {
  "productType": {
  - "description": "Type of the prouct to be transferred.",
  + "description": "Type of the product to be transferred.",
  "$ref": "#/definitions/ProductType"
  },
  "productId": {
  },
  "invoiceSectionId": {
  "type": "string",
  - "description": "Target invoice setion Id.",
  + "description": "Target invoice section Id.",
  "readOnly": true
  },
  "billingAccountId": {
  