If you want to change the font of your website text, you can easily do this within Section 2 - Choose & Customise Template
From the left hand menu, select Change Font.
1. Changing Website Font
Once in this section, you have a choice of compatible Font Themes. You can easily Preview any of them before deciding whether to Select it or not.
If you want to change the font for your website name/logo you can find instructions on how to do that here: https://promotemyplace.zendesk.com/hc/en-us/articles/217026686