message: docs: fix method signature and docs layout
diff: @@ -16,7 +16,7 @@ The validator offers an API to add new fields and trigger validations.
  |Name | Return Type |Description |
  |---------|---------|---------|
  -|attach(field: Field | FieldOptions) | `Field` | attaches a new field to the validator. |
  +| attach(field: FieldOptions) | `Field` | attaches a new field to the validator. |
  | validate(descriptor?: String, value?: any, options?: Object) | `Promise<boolean>` | Validates the matching fields of the provided [descriptor](#field-descriptor). |
  | pause() | `void` | Disables validation. |
  | resume() | `void` | Enables validation. |
  