Google description

Hello I am trying to edit the title that comes up when you google my website: from: CulturePie | Planning your bespoke cultural trip to Edinburgh
to: CulturePie | Your cultural guide to Copenhagen

I have altered the headings in the wordpress settings but nothing has changed.

Can anyone help me? I am a total beginner – the website was set up by my friend and I normally just add in new posts.

Thanks in advance!