[_config.yml] Update repo, add canonical_url

This is used by Jekyll SEO Tag to generate correct metadata

_config.yml

@@ -17,7 +17,8 @@ resume-external: false
 # resume-url: https://google.com/?q=my+resume
 
 url: "https://elus_etu.gitlab.utc.fr"
-repository: "elus_etu/website"
+repository: "elus_etu/elus_etu.gitlab.utc.fr"
+canonical_url: 'https://elus_etu.gitlab.utc.fr/'
 
 permalink: /:title/