Update _config.yml

Author: kastnerp

_config.yml

@@ -90,7 +90,7 @@ kaggle_id: # your kaggle id
 keybase_username: # your keybase user name
 lastfm_id: # your lastfm id
 lattes_id: # your ID on Lattes (Brazilian Lattes CV)
-linkedin_username: # your LinkedIn user name
+linkedin_username: sustainable-urban-systems-lab # your LinkedIn user name
 mastodon_username: # your mastodon instance+username in the format instance.tld/@username
 medium_username: # your Medium username
 orcid_id: # your ORCID ID