When you are on the complete board list page:
Click the edit icon (the pencil on the right).
Add your board to the list of boards (list is in alphabetical order).
Save the list of boards page (button at the bottom)
Click your new link. This will bring you to a blank page for your board.
Copy source from [[Board:NewBoardPageTemplate]] - need to update into your blank page.
Visit the link above, click edit, highlight the content, ctrl-c, then open your new blank page, edit, ctrl-v.
Remove irrelevant sections from the template. Add content to the template. Save.