Fix copyright to trigger dependency graph update

Author: sdruskat

README.md

@@ -111,4 +111,5 @@ The Hexatomic documentation is licensed under a Creative Commons
 Attribution-ShareAlike 4.0 International license
 [![CC-By-SA-4.0 badge](src/static/img/cc-by-sa.png)](LICENSE).
 
-Copyright (c) 2018ff. The [Hexatomic project team](https://github.com/orgs/hexatomic/teams/project/members)
+Copyright © 2018 Humboldt-Universität zu Berlin, Friedrich Schiller University Jena.  
+[Hexatomic project team](https://github.com/orgs/hexatomic/teams/project/members).

src/theme/index.hbs

@@ -119,7 +119,8 @@
                     </li>
                 </ol>
                 <hr>
-                <p><i class="fa fa-copyright"></i> 2018ff. <a href="https://github.com/orgs/hexatomic/teams/project/members" target="_blank">Hexatomic project team</a></p>
+                <p><i class="fa fa-copyright"></i> 2018 Humboldt-Universität zu Berlin, Friedrich Schiller University Jena</p>
+                <p><a href="https://github.com/orgs/hexatomic/teams/project/members" target="_blank">Hexatomic project team</a></p>
                 <p><a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode" target="_blank"><img src="https://img.shields.io/github/license/hexatomic/hexatomic.github.io.svg?style=flat-square"></a></p>
                 <p><a href="https://github.com/rust-lang-nursery/mdBook" target="_blank"><img src="https://img.shields.io/badge/made%20with-mdBook-lightgrey.svg?style=flat-square"></a></p>
                 <p><a href="https://github.com/hexatomic/hexatomic.github.io" target="_blank"><img src="https://img.shields.io/badge/open-source-violet.svg?logo=github&style=flat-square&logoColor=white"></a></a>