Authentication.md

 ## Authentication process based on the federated identity approach
 
-![B2ACCESS integration - sequence diagram](eudat_aai-b2safe_sequence.png)
+![B2ACCESS integration - sequence diagram](https://gitlab.eudat.eu/b2safe/B2SAFE-core/-/wikis/eudat_aai-b2safe_sequence.png)
 
 1a) Authorization scripts, scheduled periodically, fetches the user attributes from Unity ([B2ACCESS](https://eudat.eu/services/b2access)), 
 via REST admin interface, providing username/password. It gets the attributes of all the registered users.