You can just copy the content for config.yaml files from theme/toha/exampleSite/config.yaml.
Run your hugo site with this theme.
hugo server -w
When you first run your site, it will start with the default parameters. It should look similar to the example site except it will not have any sections in the homepage. Those sections are added via some data files.
You can configure your site by following the step by step guides from here.
Here, are some handy shortcodes you can use with this theme.