Can't get rid of "New push notifications available"

How can I get rid of this big notice on my cellphone? There’s no “X” button.

Sure, just scroll down.
But next time there it is again.

on GitHub Web, when you click that you’ll go to Unread then select that and click Done, so there should be equivalent at the GitHub App,

All I know is on my cellphone there is no way to get rid of that full page message, except by scrolling down.

But it will be waiting for you tomorrow.