message: refactor(Demo): update for clarity
diff: @@ -105,13 +105,12 @@ test@test.com
  <ts-card tsVerticalSpacing>
  - <h3 tsCardTitle>Date</h3>
  + <h3 tsCardTitle>Date (min/max)</h3>
  - <div>
  <ts-datepicker
  [formControl]="myForm.get('date')"
  + hint="Date must be between 1/5/2018 and 1/25/2018"
  ></ts-datepicker>
  - </div>
  </ts-card>
  