Add repository in _config.yml (#153)

Author: gomzyakov

_config.yml

@@ -3,6 +3,7 @@ title: Complete list of all GitHub profile Badges and Achievements
 logo_url: https://avatars.githubusercontent.com/u/117988194?s=200&v=4
 url: https://badges-and-achievements.github.io/
 baseurl: ""
+repository: badges-and-achievements/badges-and-achievements.github.io
 
 permalinks: pretty