Update _config.yml

Author: abhilash-neog

_config.yml

@@ -78,7 +78,7 @@ dblp_url: # your DBLP profile url
 discord_id: # your discord id (18-digit unique numerical identifier)
 facebook_id: # your facebook id
 flickr_id: # your flickr id
-github_username: # your GitHub user name
+github_username: KGML-lab
 gitlab_username: # your GitLab user name
 ieee_id: # your ieeexplore.ieee.org/author/id
 inspirehep_id: 1010907 # Inspire HEP author ID