This repo is for a custom wordpress theme.
To get this theme working, you must already have a version of wordpress set up. You can get a blank copy of wordpress from https://wordpress.org/
Once you have the wordpress project set up, you must clone this repo inside the theme folder which is located in wp-content folder inside wordpress.
Keep refering back to the Wordpress Codex. Everything about wordpress will be located in this site.
Make sure you are also refering to the wordpress hierarchy chart to check what are the required file names needed to view specific posts/pages on your site.