Update to jekyll 4 (modernization)

_layouts/default.html

@@ -11,11 +11,11 @@
         <div class="col-xs-12 text-center">
           {% assign logo_url = page.logo_url | default: "/images/logo.svg" %}
           <img
-            src="{{ logo_url | prepend: site.baseurl }}"
+            src="{{ logo_url | relative_url }}"
             alt="Chaospott Logo"
             {% if logo_url == "/images/logo.svg" %}
               class="js-pride-logo"
-              data-pride-src="{{ "/images/logo-pride.svg" | prepend: site.baseurl }}"
+              data-pride-src="{{ "/images/logo-pride.svg" | relative_url }}"
             {% endif %}
           />
         </div>
@@ -26,9 +26,9 @@
     <footer>
       {% include footer.html %}
     </footer>
-    <script src="{{ site.baseurl }}/js/pride-logo.js"></script>
-    <script src="{{ site.baseurl }}/js/TweenLite.min.js"></script>
-    <script src="{{ site.baseurl }}/js/EasePack.min.js"></script>
-    <script src="{{ site.baseurl }}/js/rAF.js"></script>
+    <script src="{{ "/js/pride-logo.js" | relative_url }}"></script>
+    <script src="{{ "/js/TweenLite.min.js" | relative_url }}"></script>
+    <script src="{{ "/js/EasePack.min.js" | relative_url }}"></script>
+    <script src="{{ "/js/rAF.js" | relative_url }}"></script>
   </body>
 </html>