Initial commit (stolen from https://gitlab.utc.fr/jrda-2021/website)

_themes/prologue/_includes/logo.html

@@ -0,0 +1,8 @@
+<!-- Logo -->
+<div id="logo">
+  <a href="{{- '/' | absolute_url -}}" id="home-link">
+    <span class="image avatar48"><img src="{{- site.avatar | relative_url -}}" alt="{{- site.author | default: 'unknown author' | prepend: 'Avatar of ' -}}" /></span>
+    <h1 id="title">{{- site.title -}}</h1>
+    <p>{{- site.subtitle -}}</p>
+  </a>
+</div>