Please add Register button to CN4EF website

Hi -- please update the CN4EF website https://events.eclipse.org/2021/cn4ef-day/ to add the Register button in the Jumbotron. The button should go here: https://www.crowdcast.io/e/CN4EF

Since Monday is a holiday, would be great if this could be added tomorrow, Friday, Sept. 3. Thanks!