diff --git a/book/_config.yml b/book/_config.yml
index ebffffa..089e0ba 100644
--- a/book/_config.yml
+++ b/book/_config.yml
@@ -1,5 +1,5 @@
 title: TeachBooks Manual
-author: TeachBooks Team from Delft university of Technology, built with <a href="https://teachbooks.tudelft.nl/">TeachBooks</a> and <a href="https://jupyterbook.org/">Jupyter Book</a>, <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="license noopener noreferrer"">CC BY 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg" alt=""><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg" alt=""> 
+author: TeachBooks Team from Delft University of Technology, built with <a href="https://teachbooks.tudelft.nl/">TeachBooks</a> and <a href="https://jupyterbook.org/">Jupyter Book</a>, <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="license noopener noreferrer"">CC BY 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg" alt=""><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg" alt=""> 
 
 logo: images/Logo_without_background.png