add margin

_includes/footer_custom.html

 <div class="footer-logo">
     <img src="{{ site.footer_logo | relative_url }}" alt="TU Delft Logo" style="height: 40px; width: auto;">
-    <img src="{{ site.logo | relative_url }}" alt="MUDE Logo" style="height: 50px; width: auto;">
+    <img src="{{ site.logo | relative_url }}" alt="MUDE Logo" style="height: 50px; width: auto; margin-top: 10px;">
   </div>
   <div>
     The MUDE Team &copy; 2024 <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>