This theme is translatable. You can change the sites language in your configuration file. If your language is not yet available it will be easy to do so: Create a copy of the file i18n/en.yaml and name it with your languages shortcode (eg. de.yaml or fr.yaml).
After that, open the file in a text editor and translate:
Example:
- id: featured_post
translation: Featured Posts
- id: featured_post
translation: Postes en vedette