The menu is only displaying as 3 lines like in a mobile app , not as a list of menu items along the top. My site it shows the menu as an icon: http://glengormcastle.co.uk/2020/

However, I want it to look like this, as it is displayed while in customisation mode. 

How do I get the menu to display as a line of links?

Thanks

Sorry, I've worked it out thanks. I went to customise / header settings.