message: docs(virtuals): improve wording
diff: @@ -100,13 +100,13 @@ class Parent {
  ref: () => Sub,
  foreignField: 'parent',
  localField: '_id',
  - justOne: true // know that when this is not included, Mongoose will return an array
  + justOne: true // when this is not set to "true", mongoose will always return a Array
  })
  public one: Ref<Sub>;
  }
  ```
  -Example (since typegoose 7.4 (and mongoose 4.13)): dynamic `ref` & `localField` & `foreignField`
  +Example (since typegoose 7.4): dynamic `ref`, `localField` and `foreignField`
  ```ts
  class Sub {
  