Import Demo Logo is too small

Hi,

I’ve downloaded the import demo (minimalistic) and I’ve uploaded my logo image (that I received from a design agency who created it). I used a .png file but I’m finding that it’s very small and it looks terrible… I used the scale recommended and that was worse.

How do I make my logo appear a little bigger and with clarity (pixel size, best file format etc).

Ally

PS I’m not a website designer. I’m just someone having a go at creating my own website, so nothing too complex please! 🙂