img to fullscreen

_includes/img-to-fullscreen.html

@@ -0,0 +1,7 @@
+<script>
+    document.querySelectorAll('img').forEach(img => {
+        img.onclick = function() {
+            this.requestFullscreen();
+        };
+    });
+</script>

_layouts/default.html

@@ -56,5 +56,6 @@
 
     {% include analytics.html %}
     {% include unami.html %}
+    {% include img-to-fullscreen.html %}
   </body>
 </html>