message: Updated README examples with nanoid
diff: @@ -353,16 +353,16 @@ Pass `true` to show the combinators (and/or) between rules and rule groups inste
  import { formatQuery } from 'react-querybuilder';
  const query = {
  - id: 'g-8953ed65-f5ff-4b77-8d03-8d8788beb50b',
  + id: 'g-b6SQ6WCcup8e37xhydwHE',
  rules: [
  {
  - id: 'r-32ef0844-07e3-4f3b-aeca-3873da3e208b',
  + id: 'r-zITQOjVEWlsU1fncraSNn',
  field: 'firstName',
  value: 'Steve',
  operator: '='
  },
  {
  - id: 'r-3db9ba21-080d-4a5e-b4da-d949b4ad055b',
  + id: 'r-zVx7ARNak3TCZNFHkwMG2',
  field: 'lastName',
  value: 'Vai',
  operator: '='
  @@ -378,16 +378,16 @@ An optional third argument can be passed into `formatQuery` if you need to contr
  ```js
  const query = {
  - id: 'g-8953ed65-f5ff-4b77-8d03-8d8788beb50b',
  + id: 'g-J5GsbcFmZ6xOJCLPPKIfE',
  rules: [
  {
  - id: 'r-32ef0844-07e3-4f3b-aeca-3873da3e208b',
  + id: 'r-KneYcwIPPHDGSogtKhG4g',
  field: 'instrument',
  value: ['Guitar', 'Vocals'],
  operator: 'in'
  },
  {
  - id: 'r-3db9ba21-080d-4a5e-b4da-d949b4ad055b',
  + id: 'r-wz6AkZbzSyDYbPk1AxgvO',
  field: 'lastName',
  value: 'Vai',
  operator: '='
  